Soldiers from 22 African nations join exercises as part of the African Union's African Standby Force (ASF) at the South Africa National Defence Force's Lohatla training area October 28, 2015. Backed by tanks, armoured vehicles and plenty of EU cash, thousands of African soldiers took on an imaginary enemy in the arid heart of South Africa this week, the last joint exercises before a homegrown continental strike force goes live. Standing on far-away hilltops, commanders peered through night vision goggles and issued orders through helmet-mounted radios to the 5,400 troops simulating a dawn assault on rebels in the fictitious city of Kalasi marked out in the bush. The orderly manoeuvres and high-tech kit elicited purrs of approval from military chiefs who tout the rapid-reaction battalion - a key part of a long-awaited African Standby Force (ASF) - as the antidote to insurrections spiralling into civil war or even genocide. Picture taken October 28, 2015. REUTERS/Mike Hutchings 

A Mozambican soldier joins exercises as part of the African Union's African Standby Force (ASF) at the South Africa National Defence Force's Lohatla training area October 27, 2015. Backed by tanks, armoured vehicles and plenty of EU cash, thousands of African soldiers took on an imaginary enemy in the arid heart of South Africa this week, the last joint exercises before a homegrown continental strike force goes live. Standing on far-away hilltops, commanders peered through night vision goggles and issued orders through helmet-mounted radios to the 5,400 troops simulating a dawn assault on rebels in the fictitious city of Kalasi marked out in the bush. The orderly manoeuvres and high-tech kit elicited purrs of approval from military chiefs who tout the rapid-reaction battalion - a key part of a long-awaited African Standby Force (ASF) - as the antidote to insurrections spiralling into civil war or even genocide. Picture taken October 27, 2015. REUTERS/Mike Hutchings 

Soldiers from 22 African nations join exercises as part of the African Union's African Standby Force (ASF) at the South Africa National Defence Force's Lohatla training area October 27, 2015. Backed by tanks, armoured vehicles and plenty of EU cash, thousands of African soldiers took on an imaginary enemy in the arid heart of South Africa this week, the last joint exercises before a homegrown continental strike force goes live. Standing on far-away hilltops, commanders peered through night vision goggles and issued orders through helmet-mounted radios to the 5,400 troops simulating a dawn assault on rebels in the fictitious city of Kalasi marked out in the bush. The orderly manoeuvres and high-tech kit elicited purrs of approval from military chiefs who tout the rapid-reaction battalion - a key part of a long-awaited African Standby Force (ASF) - as the antidote to insurrections spiralling into civil war or even genocide. Picture taken October 27, 2015. REUTERS/Mike Hutchings 

Soldiers from 22 African nations join exercises as part of the African Union's African Standby Force (ASF) at the South Africa National Defence Force's Lohatla training area October 27, 2015. Backed by tanks, armoured vehicles and plenty of EU cash, thousands of African soldiers took on an imaginary enemy in the arid heart of South Africa this week, the last joint exercises before a homegrown continental strike force goes live. Standing on far-away hilltops, commanders peered through night vision goggles and issued orders through helmet-mounted radios to the 5,400 troops simulating a dawn assault on rebels in the fictitious city of Kalasi marked out in the bush. The orderly manoeuvres and high-tech kit elicited purrs of approval from military chiefs who tout the rapid-reaction battalion - a key part of a long-awaited African Standby Force (ASF) - as the antidote to insurrections spiralling into civil war or even genocide. Picture taken October 27, 2015. REUTERS/Mike Hutchings 

Pascal Lamy, former World Trade Organization Director-General, speaks during an interview at the Reuters Russia Investment summit in Moscow, Russia, September 30, 2015. Russia's push to boost sales of homegrown products while imports are hit by sanctions will be economically damaging if past experience is any guide, Lamy said on Wednesday. REUTERS/Maxim Shemetov 

Pascal Lamy, former World Trade Organization Director-General, speaks during an interview at the Reuters Russia Investment summit in Moscow, Russia, September 30, 2015. Russia's push to boost sales of homegrown products while imports are hit by sanctions will be economically damaging if past experience is any guide, Lamy said on Wednesday. REUTERS/Maxim Shemetov 

Pascal Lamy, former World Trade Organization Director-General, speaks during an interview at the Reuters Russia Investment summit in Moscow, Russia, September 30, 2015. Russia's push to boost sales of homegrown products while imports are hit by sanctions will be economically damaging if past experience is any guide, Lamy said on Wednesday. REUTERS/Maxim Shemetov 

Participants descend a hill on a homemade cart during the 26th Roller Cart Festival in Medellin, Colombia September 6, 2015. REUTERS/Fredy Builes 

A competitor wearing a mask poses with his homemade vehicle without an engine before the start of the Red Bull Soapbox Race in Amman, Jordan September 4, 2015. REUTERS/Muhammad Hamed 

Competitors check their homemade vehicle without an engine before the start of the Red Bull Soapbox Race in Amman, Jordan September 4, 2015. REUTERS/Muhammad Hamed 

A competitor crashes while driving his homemade vehicle without an engine on a 300-metre-track during the Red Bull Soapbox Race in Amman, Jordan September 4, 2015. REUTERS/Muhammad Hamed 

People watch a competitor riding a homemade vehicle without an engine on a 300-metre-track during the Red Bull Soapbox Race in Amman, Jordan September 4, 2015. REUTERS/Muhammad Hamed 

People watch a competitor riding a homemade vehicle without an engine on a 300-metre-track during the Red Bull Soapbox Race in Amman, Jordan September 4, 2015. REUTERS/Muhammad Hamed 

Competitors ride a homemade vehicle without an engine on a 300-metre-track during the Red Bull Soapbox Race in Amman, Jordan September 4, 2015. REUTERS/Muhammad Hamed 

Competitors ride a homemade vehicle without an engine on a 300-metre-track during the Red Bull Soapbox Race in Amman, Jordan September 4, 2015. REUTERS/Muhammad Hamed 

Competitors ride a homemade vehicle without an engine on a 300-metre-track during the Red Bull Soapbox Race in Amman, Jordan September 4, 2015. REUTERS/Muhammad Hamed 

Yatin Shah, executive director of IIFL Private Wealth Management, works on a terminal in the dealing room at the IIFL centre in Mumbai, India, August 31, 2015. India's homegrown wealth managers are hiring more staff and expanding in smaller cities, seeking to attract rising numbers of newly minted millionaires as high costs and regulatory restrictions drive some global rivals to scale down. Picture taken August 31, 2015. REUTERS/Shailesh Andrade 

Yatin Shah, executive director of IIFL Private Wealth Management, poses for a picture at the IIFL centre in Mumbai, India, August 31, 2015. India's homegrown wealth managers are hiring more staff and expanding in smaller cities, seeking to attract rising numbers of newly minted millionaires as high costs and regulatory restrictions drive some global rivals to scale down. Picture taken August 31, 2015. REUTERS/Shailesh Andrade 

A worker carries a pizza for delivery as he exits a Domino's pizza store in Sydney, Australia, August 12, 2015. Fast food may be falling out of favour in many countries around the world but companies are making healthy profits and boldly innovating in the unlikely market of Australia. Contrary to stereotypes of a beach-going community of fitness fanatics, official data out this week showed 40 percent of Australian adults are dangerously obese and have a poor diet that includes lashings of fast food. That makes Australia a hotbed for innovation by companies including homegrown firm Domino's Pizza Enterprises Ltd, McDonald's Corp and Yum! Brands Inc's, KFC and Pizza Hut as they struggle to win over health-conscious diners in other countries. Picture taken August 12, 2015. REUTERS/David Gray 

A worker carries a pizza for delivery as he exits a Domino's pizza store in Sydney, Australia, August 12, 2015. Fast food may be falling out of favour in many countries around the world but companies are making healthy profits and boldly innovating in the unlikely market of Australia. Contrary to stereotypes of a beach-going community of fitness fanatics, official data out this week showed 40 percent of Australian adults are dangerously obese and have a poor diet that includes lashings of fast food. That makes Australia a hotbed for innovation by companies including homegrown firm Domino's Pizza Enterprises Ltd, McDonald's Corp and Yum! Brands Inc's, KFC and Pizza Hut as they struggle to win over health-conscious diners in other countries. Picture taken August 12, 2015. REUTERS/David Gray 

A man crosses a main road as pedestrians carrying food walk along the footpath in central Sydney, Australia, August 12, 2015. Fast food may be falling out of favour in many countries around the world but companies are making healthy profits and boldly innovating in the unlikely market of Australia. Contrary to stereotypes of a beach-going community of fitness fanatics, official data out this week showed 40 percent of Australian adults are dangerously obese and have a poor diet that includes lashings of fast food. That makes Australia a hotbed for innovation by companies including homegrown firm Domino's Pizza Enterprises Ltd, McDonald's Corp and Yum! Brands Inc's, KFC and Pizza Hut as they struggle to win over health-conscious diners in other countries. Picture taken August 12, 2015. REUTERS/David Gray 

Hamas militants display their home-made rockets during a military-style exercise graduation ceremony for young Palestinians organised by the Hamas movement, in Gaza City August 5, 2015. Thousands of young Palestinians joined Hamas military-style summer camps during school vacation in the Gaza Strip to prepare them to "confront any possible Israeli attack", organisers said. REUTERS/Suhaib Salem 

A student with a home-made gas mask lights a fireworks during clashes with riot policemen in La Paz, July 17, 2015. Hundreds of demonstrators of Potosi demanded to have a meeting with President Evo Morales to discuss about the industrialization of their region in their fifth day of protest in La Paz, according to local media. REUTERS/David Mercado TPX IMAGES OF THE DAY

Developers of smartphone dating app Paktor log in to their accounts to show their Paktor profiles at their office in Singapore July 16, 2015. Homegrown apps hope their understanding of local cultural norms will give them a leg up over global rivals such as U.S-based Tinder, which has millions more users but which is seen as conduit for finding sexual partners, as well as friends. REUTERS/Edgar Su 

Zac Brown of the Zac Brown Band performs "Homegrown" during the 2015 CMT Awards in Nashville, Tennessee June 10, 2015. REUTERS/Harrison McClary 

Zac Brown of the Zac Brown Band performs "Homegrown" during the 2015 CMT Awards in Nashville, Tennessee June 10, 2015. REUTERS/Harrison McClary 

Zac Brown of the Zac Brown Band performs "Homegrown" during the 2015 CMT Awards in Nashville, Tennessee June 10, 2015. REUTERS/Harrison McClary 

Singer Darius Rucker performs "Homegrown Honey" during the 2015 CMT Awards in Nashville, Tennessee June 10, 2015. REUTERS/Eric Henderson 

Singer Darius Rucker performs "Homegrown Honey" during the 2015 CMT Awards in Nashville, Tennessee June 10, 2015. REUTERS/Eric Henderson 

Singer Darius Rucker performs "Homegrown Honey" during the 2015 CMT Awards in Nashville, Tennessee June 10, 2015. REUTERS/Eric Henderson 

A student protester, face covered with a cardboard box with text that says "Increase now", takes part in a demonstration against insecurity and to request, infrastructure improvements and wage increases, outside Venezuela Central University in Caracas May 28, 2015. REUTERS/Carlos Garcia Rawlins 

A man pushes his home-made baby stroller carrying his grandson at a park in Beijing April 13, 2015. REUTERS/Kim Kyung-Hoon

A rebel fighter uses a military compass in preparation to launch a home made shell towards forces loyal to Syria's president Bashar Al-Assad in the Seif El Dawla neighbourhood in Aleppo March 28, 2015. REUTERS/Rami Zayat 

Islamic Ahrar al-Sham fighters fire a locally made weapon towards forces loyal to Syria's president Bashar Al-Assad on the frontline of Idlib city in northern Syria, where they announced a battle to liberate the city March 21, 2015. Picture taken March 21, 2015. REUTERS/Khalil Ashawi

Rebel fighters from Suqour al-Sham Brigade prepare a locally made shell before launching it towards forces loyal to Syria's president Bashar Al-Assad in Idlib countryside March 18, 2015. REUTERS/Mohamad Bayoush (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY TPX IMAGES OF THE DAY) 

Al-Shamiyah Front fighters inspect a new locally-made cannon named "Borkan" (Volcano) as it was being launched towards forces loyal to Syria's president Bashar Al-Assad located in Aleppo artillery school, March 7, 2015. The "Borkan" is made out of four tubes attached to a loader, which can fire four shells at a time, and have a range of three kilometres (1.86 miles). REUTERS/Abdalrhman Ismail (SYRIA - Tags: CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) 

Vendors sell fruit, vegetables and homemade food items along a street in Kiev February 27, 2015. REUTERS/Valentyn Ogirenko (UKRAINE - Tags: BUSINESS SOCIETY FOOD) 

Girls sit at the window of a Cafe Coffee Day outlet in Mumbai, February 25, 2015. The firm behind Cafe Coffee Day, India's biggest homegrown coffee chain, is set for a market debut that could value it at almost $1 billion, even as the country's burgeoning cafe culture draws global giants Starbucks and McDonald's. Cafe Coffee Day, a cafe pioneer in India, aims to list a 20 percent stake, raising roughly $200 million, within the next quarter, sources with direct knowledge of the plans said. Picture taken February 25, 2015. REUTERS/Shailesh Andrade (INDIA - Tags: BUSINESS FOOD) 

A visitor looks at an exhibit titled "The Threshold into a Dream" by Indian artist T.V. Santhosh at the India Art Fair in New Delhi January 29, 2015. India's biggest art fair opened in New Delhi this week with a focus on homegrown artists and exhibits inspired by contemporary themes such as the worst floods in the Kashmir region in more than a century. Picture taken January 29, 2015. REUTERS/Anindito Mukherjee (INDIA - Tags: SOCIETY) 

A visitor takes a "selfie" in front of an exhibit titled "Circle Uncircled" by artist Rahul Kumar, at the India Art Fair in New Delhi January 29, 2015. India's biggest art fair opened in New Delhi this week with a focus on homegrown artists and exhibits inspired by contemporary themes such as the worst floods in the Kashmir region in more than a century. Picture taken January 29, 2015. REUTERS/Anindito Mukherjee (INDIA - Tags: SOCIETY) 

A Free Syrian Army fighter prepares a locally made shell before launching it towards forces loyal to Syria's president Bashar Al-Assad in Old Aleppo January 17, 2015. REUTERS/Abdalrhman Ismail (SYRIA - Tags: CIVIL UNREST CONFLICT) 

Blacksmith Viktor Mikhalev wears a metal crown made in the likeness of the Imperial Crown of Russia, in his blacksmith's shop in Donetsk, eastern Ukraine, December 19, 2014. Mikhalev makes his handicrafts from the remains of ammunition left behind in the the fighting between pro-Russian separatists and Ukrainian government forces. REUTERS/Maxim Shemetov (UKRAINE - Tags: POLITICS CONFLICT CIVIL UNREST SOCIETY) 

A locally made shell is launched by rebel fighters towards forces loyal to Syria's President Bashar al-Assad at the frontline in al-Breij district of Aleppo December 10, 2014. REUTERS/Sultan Kitaz (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) 

Women, mostly pensioners who live outside Kiev they say, sell homemade foodstuffs in Kiev December 3, 2014. After a year of political upheaval and a war in the east, Ukrainians are facing a winter in poverty, with prices rising sharply, the currency crumbling and a nearly bankrupt state dependent on foreign aid and in no position to offer any help. To match story UKRAINE-CRISIS/WINTER REUTERS/Valentyn Ogirenko (UKRAINE - Tags: FOOD SOCIETY BUSINESS ENVIRONMENT) 

Locally made shells are launched by Free Syrian Army fighters towards forces loyal to Syria's President Bashar al-Assad in the Handarat area, north of Aleppo November 30, 2014. REUTERS/Hosam Katan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY) 

Locally made shells are launched by Free Syrian Army fighters towards forces loyal to Syria's President Bashar al-Assad in the Handarat area, north of Aleppo November 30, 2014. REUTERS/Hosam Katan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY) 

Rebel fighters launch a locally made weapon on the Karm al-Tarab frontline towards forces loyal to Syria's President Bashar al-Asaad, at Aleppo International airport November 23, 2014. REUTERS/Abdalrhman Ismail (SYRIA - Tags: CIVIL UNREST CONFLICT) 

A member of the Mongols Motorcycle Club, known only as 'Lucky', poses for a photograph in their clubhouse located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match Feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY) 

Members of the Mongols Motorcycle Club, display their club's emblem on the back of their jackets as they pose for a photograph in their clubhouse located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY) 

A member of the Mongols Motorcycle Club, known only as 'James', poses for a photograph in their clubhouse located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match Feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY) 

A member of the Mongols Motorcycle Club, known only as 'Paul', poses for a photograph in their clubhouse located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match Feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY) 

Members of the Mongols Motorcycle Club prepare to ride away from their clubhouse compound located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match Feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY) 

Members of the Mongols Motorcycle Club ride in formation away from their clubhouse compound located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match Feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY) 

A member of the Mongols Motorcycle Club, known only as 'Dass', poses for a photograph in their clubhouse located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match Feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY) 

Mark "Ferret" Moroney, national president of the Mongols Motorcycle Club, poses for a photograph in their clubhouse located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match Feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY) 

Mark "Ferret" Moroney (C), National President of the Mongols Motorcycle Club, leads fellow members in formation away from their clubhouse compound located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match Feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY) 

A member of the Mongols Motorcycle Club, known only as 'Crazy', poses for a photograph in their clubhouse located in western Sydney November 9, 2014. Australia is confronting what authorities say is a growing threat from homegrown Islamist radicals and fears a new danger is about to rumble over the horizon - would-be militants hooking up with biker gangs. The gangs have since been transformed by an influx of members of Middle Eastern origin, some of whom do not even ride motorcycles. Biker gangs now have strong family and cultural ties to the very communities police worry are harbouring potential radicals. Picture taken November 9, 2014. To match Feature AUSTRALIA-BIKERS/ REUTERS/David Gray (AUSTRALIA - Tags: CIVIL UNREST SOCIETY)