Boeing's Integrator long-endurance unmanned aircraft is showcased as part of an Arctic surveillance system offered to NATO allies, at Odense airport, Denmark September 6, 2022. REUTERS/Jacob Gronholt-Pedersen REFILE - CORRECTING DATE 

Boeing's Integrator long-endurance unmanned aircraft is showcased as part of an Arctic surveillance system offered to NATO allies, at Odense airport, Denmark September 6, 2022. REUTERS/Jacob Gronholt-Pedersen REFILE - CORRECTING DATE 

Boeing's Defence Global Sales and Marketing, Strike, Surveillance and Mobility, Thomas Breckenridge presents the Boeing/Saab T-7 advanced trainer aircraft at the Singapore Airshow in Singapore February 12, 2020. REUTERS/Edgar Su 

A U.S. Navy P-3 Orion surveillance aircraft flies over Marawi City, southern Philippines October 24, 2017. REUTERS/Romeo Ranoco 

A China Civil UAS (Unmanned Aerospace Surveillance) Pilot Flight examiner (in red) speaks to a trainee after his examination for the license from AOPA CHINA (Aircraft Owners and Pilots Association) at LTFY drone training school on the outskirts of Beijing, China August 14, 2017. Picture taken August 14, 2017. REUTERS/Jason Lee 

A trainee flies a drone next to a China Civil UAS (Unmanned Aerospace Surveillance) Pilot Flight examiner (in red) during his examination for the license from AOPA CHINA (Aircraft Owners and Pilots Association) at LTFY drone training school on the outskirts of Beijing, China August 14, 2017. Picture taken August 14, 2017. REUTERS/Jason Lee 

Philippine Defence Secretary Delfin Lorenzana disembarks from the cockpit of a Cessna-208B Grand Caravan Intelligence, Surveillance and Reconnaissance (ISR) aircraft acquired by the Philippine government from the U.S. during a turn over ceremony at the Philippine Air Force (PAF) headquarters in Manila, Philippines July 27, 2017. REUTERS/Dondi Tawatao 

U.S. Ambassador to the Philippines Sung Kim poses at the cockpit of a Cessna-208B Grand Caravan Intelligence, Surveillance and Reconnaissance (ISR) aircraft acquired by the Philippine government from the U.S. during a turn over ceremony at the Philippine Air Force (PAF) headquarters in Manila, Philippines July 27, 2017. REUTERS/Dondi Tawatao 

U.S. Ambassador to the Philippines Sung Kim pours wine on a Cessna-208B Grand Caravan Intelligence, Surveillance and Reconnaissance (ISR) aircraft acquired by the Philippine government from the U.S. during a turn over ceremony at the Philippine Air Force (PAF) headquarters in Manila, Philippines July 27, 2017. REUTERS/Dondi Tawatao 

A People's Republic of China cargo plane flies near a U.S. Navy P-3 Orion surveillance aircraft after unloading China military assistance to the Philippines at Clark Air Base, near Angeles City, Philippines June 28, 2017. REUTERS/Romeo Ranoco 

A U.S. P3 Orion surveillance aircraft is seen flying over the town of Marawi city, as government troops continue their assault against insurgents from the Maute group, who has taken over large parts of the city, Philippines June 9, 2017. Picture taken June 9, 2017. REUTERS/Romeo Ranoco 

A U.S. Navy E2C Hawkeye surveillance aircraft lands on the deck of aircraft carrier USS Carl Vinson during a routine exercise in the South China Sea, March 3, 2017. REUTERS/Erik De Castro 

A U.S. Navy E-2C Hawkeye surveillance aircraft lands on the deck of aircraft carrier USS Carl Vinson during a routine exercise in South China Sea, March 3, 2017. REUTERS/Erik De Castro 

A U.S. Navy E2C Hawkeye surveillance aircraft lands on the deck of aircraft carrier USS Carl Vinson during a routine exercise in the South China Sea, March 3, 2017. REUTERS/Erik De Castro 

A U.S. Navy E-2C Hawkeye surveillance aircraft lands on the deck of aircraft carrier USS Carl Vinson during a routine exercise in South China Sea, March 3, 2017. REUTERS/Erik De Castro 

Indonesian airforce personnel tidy up their CN235-220 maritime surveillance aircraft displayed at the Singapore Airshow at Changi Exhibition Center February 17, 2016. Picture taken February 17, 2016. REUTERS/Edgar Su

U.S. Air Force Boeing P-8 Poseidon (R) is displayed at the Singapore Airshow at Changi Exhibition Center February 18, 2016. REUTERS/Edgar Su

Indonesian airforce personnel stand next to their CN235-220 maritime surveillance aircraft displayed at the Singapore Airshow at Changi Exhibition Center February 17, 2016. Picture taken February 17, 2016. REUTERS/Edgar Su

DJI's first flagship store is pictured in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

A customer carrying a box containing DJI's Phantom 3 drone leave from their first flagship store in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

Customers look at a DJI's Phantom 3 drone at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

DJI's first flagship store is pictured in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

Customers line up to buy DJI's drone at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

Customers look at a DJI's Phantom 3 drone at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

A DJI's Phantom 3 drone flies during a demonstration at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

A DJI's Phantom 3 drone flies during a demonstration at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

A child looks at DJI's Phantom 3 drone at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

Customers line up to buy DJI's drone at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

DJI's Phantom 3 drones are displayed at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

A woman walks past a shelf display of DJI's Phantom 3 drones at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015, two days before it's official opening. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

DJI's Phantom 3 Professional drone is displayed at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015, two days before the official opening. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

A customer holds a DJI's Phantom 3 Standard drone at their first flagship store in Shenzhen, Guangdong province, China December 20, 2015, two days before the official opening. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

DJI's Phantom 3 Professional drone is displayed inside DJI's first flagship store of DJI in Shenzhen, Guangdong province, China December 20, 2015, two days before the official opening. Chinese drone developers are racking up an impressive list of aerial solutions for a growing variety of demands, from police surveillance to agricultural mapping and traffic management. Already well established as a world leader in drone manufacturing, China is slowly emerging as a world-class innovator, not just a duplicator of foreign designs. REUTERS/Tyrone Siu 

Muthanna Islamic Movement members inspect what they say is a Russian made military surveillance drone which they claimed to have shot down in Sheikh Meskeen near Deraa, Syria December 15, 2015. Picture taken December 15, 2015. REUTERS/Alaa Al-Faqir 

Muthanna Islamic Movement members inspect what they say is a Russian made military surveillance drone which they claimed to have shot down in Sheikh Meskeen near Deraa, Syria December 15, 2015. Picture taken December 15, 2015. REUTERS/Alaa Al-Faqir 

A Muthanna Islamic Movement member inspects what they say is a Russian made military surveillance drone which they claimed to have shot down in Sheikh Meskeen near Deraa, Syria December 15, 2015. Picture taken December 15, 2015. REUTERS/Alaa Al-Faqir 

French President Francois Hollande (R Top) and Defence Minister Jean-Yves Le Drian (Top L) visit troops aboard the Charles de Gaulle aircraft carrier deployed in the Mediterranean Sea off the coast of Syria, December 4, 2015. The carrier, which has 38 warplanes on board, was deployed to the east Mediterranean just days after Islamic State claimed responsibility for attacks in Paris that killed 130 people. The French carrier holds some 1,900 personnel and is accompanied by an attack submarine, several frigates, refueling ships, as well as fighter jets and surveillance aircraft. REUTERS/Philippe de Poulpiquet/Pool

French President Francois Hollande (3rdL) and Defence Minister Jean-Yves Le Drian (partially hidden) visit troops aboard the Charles de Gaulle aircraft carrier deployed in the Mediterranean Sea off the coast of Syria, December 4, 2015. The carrier, which has 38 warplanes on board, was deployed to the east Mediterranean just days after Islamic State claimed responsibility for attacks in Paris that killed 130 people. The French carrier holds some 1,900 personnel and is accompanied by an attack submarine, several frigates, refueling ships, as well as fighter jets and surveillance aircraft. REUTERS/Philippe de Poulpiquet/Pool

French President Francois Hollande (Rear) speaks aboard the Charles de Gaulle aircraft carrier deployed in the Mediterranean Sea off the coast of Syria, December 4, 2015. The carrier, which has 38 warplanes on board, was deployed to the east Mediterranean just days after Islamic State claimed responsibility for attacks in Paris that killed 130 people. The French carrier holds some 1,900 personnel and is accompanied by an attack submarine, several frigates, refueling ships, as well as fighter jets and surveillance aircraft. REUTERS/Philippe de Poulpiquet/Pool

French President Francois Hollande (C) visits troops aboard the Charles de Gaulle aircraft carrier deployed in the Mediterranean Sea off the coast of Syria, December 4, 2015. The carrier, which has 38 warplanes on board, was deployed to the east Mediterranean just days after Islamic State claimed responsibility for attacks in Paris that killed 130 people. The French carrier holds some 1,900 personnel and is accompanied by an attack submarine, several frigates, refueling ships, as well as fighter jets and surveillance aircraft. REUTERS/Philippe de Poulpiquet/Pool

French President Francois Hollande (C) and French Defence Minister Jean-Yves Le Drian (L) arrive on the Charles de Gaulle aircraft carrier deployed in the Mediterranean Sea off the coast of Syria, December 4, 2015. The carrier, which has 38 warplanes on board, was deployed to the east Mediterranean just days after Islamic State claimed responsibility for attacks in Paris that killed 130 people. The French carrier holds some 1,900 personnel and is accompanied by an attack submarine, several frigates, refueling ships, as well as fighter jets and surveillance aircraft. REUTERS/Philippe de Poulpiquet/Pool

French President Francois Hollande (C) and French Defence Minister Jean-Yves Le Drian (L) arrive by helicopter on the Charles de Gaulle aircraft carrier deployed in the Mediterranean Sea off the coast of Syria, December 4, 2015. The carrier, which has 38 warplanes on board, was deployed to the east Mediterranean just days after Islamic State claimed responsibility for attacks in Paris that killed 130 people. The French carrier holds some 1,900 personnel and is accompanied by an attack submarine, several frigates, refueling ships, as well as fighter jets and surveillance aircraft. REUTERS/Philippe de Poulpiquet/Pool

French President Francois Hollande (C) and French Defence Minister Jean-Yves Le Drian (2ndL) arrive on the Charles de Gaulle aircraft carrier deployed in the Mediterranean Sea off the coast of Syria, December 4, 2015. The carrier, which has 38 warplanes on board, was deployed to the east Mediterranean just days after Islamic State claimed responsibility for attacks in Paris that killed 130 people. The French carrier holds some 1,900 personnel and is accompanied by an attack submarine, several frigates, refueling ships, as well as fighter jets and surveillance aircraft. REUTERS/Philippe de Poulpiquet/Pool

French President Francois Hollande (C) and French Defence Minister Jean-Yves Le Drian (L) arrive by helicopter on the Charles de Gaulle aircraft carrier deployed in the Mediterranean Sea off the coast of Syria, December 4, 2015. The carrier, which has 38 warplanes on board, was deployed to the east Mediterranean just days after Islamic State claimed responsibility for attacks in Paris that killed 130 people. The French carrier holds some 1,900 personnel and is accompanied by an attack submarine, several frigates, refueling ships, as well as fighter jets and surveillance aircraft. REUTERS/Pool TPX IMAGES OF THE DAY

French President Francois Hollande (C) and French Defence Minister Jean-Yves Le Drian (R) arrive on the Charles de Gaulle aircraft carrier deployed in the Mediterranean Sea off the coast of Syria, December 4, 2015. The carrier, which has 38 warplanes on board, was deployed to the east Mediterranean just days after Islamic State claimed responsibility for attacks in Paris that killed 130 people. The French carrier holds some 1,900 personnel and is accompanied by an attack submarine, several frigates, refueling ships, as well as fighter jets and surveillance aircraft. REUTERS/Philippe de Poulpiquet/Pool

Britain's Prime Minister David Cameron (C) speaks with military personnel as he stands between an RAF Sentinel surveillance aircraft (L) and an RAF Eurofighter Typhoon fighter jet during his visit to Royal Air Force station RAF Northolt in London, Britain November 23, 2015. Britain will invest an extra 12 billion pounds ($18 billion) in defense equipment over the next 10 years including nine Boeing submarine-hunting aircraft, Cameron said on Monday. REUTERS/Justin Tallis/pool

Britain's Prime Minister David Cameron (C) speaks with military personnel as he stands between an RAF Sentinel surveillance aircraft (L) and an RAF Eurofighter Typhoon fighter jet during his visit to Royal Air Force station RAF Northolt in London, Britain November 23, 2015. Britain will invest an extra 12 billion pounds ($18 billion) in defense equipment over the next 10 years including nine Boeing submarine-hunting aircraft, Cameron said on Monday. REUTERS/Justin Tallis/pool

Britain's Prime Minister David Cameron (6th L) speaks with military personnel as he stands between an RAF Sentinel surveillance aircraft (L) and an RAF Eurofighter Typhoon fighter jet during his visit to Royal Air Force station RAF Northolt in London, Britain November 23, 2015. Britain will invest an extra 12 billion pounds ($18 billion) in defense equipment over the next 10 years including nine Boeing submarine-hunting aircraft, Cameron said on Monday. REUTERS/Justin Tallis/pool

A tour group gathers under a Lockheed SR-71 Blackbird at the Udvar-Hazy Smithsonian National Air and Space Annex Museum in Chantilly, Virginia August 28, 2015. The SR-71 was a long-range spy plane that was in use from 1964 to 1998 and designed to operate at three times the speed of sound. REUTERS/Gary Cameron 

SOUTHCHINASEA-USA/ - Reissue. Factbox of Boeing’s P-8 Poseidon surveillance aircraft. Includes description on how a magnetic anomaly detector works. (SIN06) 

A KJ-200 surveillance aircraft of the Chinese Air Force flies during a training session for the upcoming parade marking the 70th anniversary of the end of World War Two, on the outskirts of Beijing, July 2, 2015. Troops from Russia and Mongolia will march together with Chinese forces in a parade in Beijing in September to commemorate the end of World War Two, the government and state media said on Thursday, confirming the first two foreign participants. REUTERS/Jason Lee

A KJ-200 surveillance aircraft of the Chinese Air Force flies during a training session for the upcoming parade marking the 70th anniversary of the end of World War Two, on the outskirts of Beijing, July 2, 2015. Troops from Russia and Mongolia will march together with Chinese forces in a parade in Beijing in September to commemorate the end of World War Two, the government and state media said on Thursday, confirming the first two foreign participants. REUTERS/Jason Lee

A U.S. military helicopter travels over the pacific ocean past a setting sun near Cardiff, California June 24, 2015. REUTERS/Mike Blake


TPX IMAGES OF THE DAY

A Philippine Airforce Islander plane flies over a US Navy P3-C Orion surveillance aircraft at an airbase in Puerto Princesa city, west Philippines June 24, 2015. The Philippines is holding separate naval exercises with U.S. and Japanese forces this week on a Philippine island that is not far from the disputed Spratly archipelago, where China's rapid creation of seven island outposts is stoking regional tensions. REUTERS/Romeo Ranoco

A Japanese P3-C Orion (R) surveillance aircraft takes-off past a US Navy P3-Orion at an airbase in Puerto Princesa city, Palawan, west Philippines June 24, 2015. The Philippines is holding separate naval exercises with U.S. and Japanese forces this week on a Philippine island that is not far from the disputed Spratly archipelago, where China's rapid creation of seven island outposts is stoking regional tensions. REUTERS/Romeo Ranoco

Japanese ground crew inspect a P3-C Orion surveillance aircraft after participating in a search and rescue exercise at an airbase in Puerto Princesa city, Palawan, west Philippines June 24, 2015. The Philippines is holding separate naval exercises with U.S. and Japanese forces this week on a Philippine island that is not far from the disputed Spratly archipelago, where China's rapid creation of seven island outposts is stoking regional tensions. REUTERS/Romeo Ranoco

Japanese navy men watch as a P3-C Orion surveillance aircraft take-off for a search and rescue exercise with members of Philippine Navy at an airbase in Puerto Princesa city, Palawan, west Philippines June 24, 2015. The Philippines is holding separate naval exercises with U.S. and Japanese forces this week on a Philippine island that is not far from the disputed Spratly archipelago, where China's rapid creation of seven island outposts is stoking regional tensions. REUTERS/Romeo Ranoco

A Japanese navy official (L) walks with members of the Philippine Navy after disembarking a P3-C Orion surveillance aircraft at an airbase in Puerto Princesa city, Palawan, west Philippines June 24, 2015. The Philippines is holding separate naval exercises with U.S. and Japanese forces this week on a Philippine island that is not far from the disputed Spratly archipelago, where China's rapid creation of seven island outposts is stoking regional tensions. REUTERS/Romeo Ranoco

A Japanese navy stands beside a P3-C Orion surveillance aircraft as they prepare to take flight for a search and rescue exercise with members of Philippine Navy at an airbase in Puerto Princesa city, Palawan, west Philippines June 24, 2015. The Philippines is holding separate naval exercises with U.S. and Japanese forces this week on a Philippine island that is not far from the disputed Spratly archipelago, where China's rapid creation of seven island outposts is stoking regional tensions. REUTERS/Romeo Ranoco

Japanese ground crew waves at a pilots of a P3-C Orion surveillance aircraft before take-off at an airbase in Puerto Princesa city, Palawan, west Philippines June 24, 2015. The Philippines is holding separate naval exercises with U.S. and Japanese forces this week on a Philippine island that is not far from the disputed Spratly archipelago, where China's rapid creation of seven island outposts is stoking regional tensions. REUTERS/Romeo Ranoco