People gather by the grave of Brigadier General Abdul-Ghani Shaalan, Commander of the Special Security Forces in Marib who was killed in recent fighting with Houthi fighters in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

A man walks at a graveyard in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

Soldiers ride on the back of a patrol truck during the burial of Brigadier General Abdul-Ghani Shaalan, Commander of the Special Security Forces in Marib who was killed in recent fighting with Houthi fighters in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

Soldiers recite prayers next to the grave of Brigadier General Abdul-Ghani Shaalan, Commander of the Special Security Forces in Marib who was killed in recent fighting with Houthi fighters, in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

Soldiers recite prayers next to the grave of Brigadier General Abdul-Ghani Shaalan, Commander of the Special Security Forces in Marib who was killed in recent fighting with Houthi fighters in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

A house roof damaged by an intercepted missile is seen in the aftermath of what Saudi-led coalition said was a thwarted Houthi missile attack, in Riyadh, Saudi Arabia, February 28, 2021. REUTERS/Ahmed Yosri

Mohamed Fahim inspects his house that was damaged by an intercepted missile in the aftermath of what Saudi-led coalition said was a thwarted Houthi missile attack, in Riyadh, Saudi Arabia, February 28, 2021. REUTERS/Ahmed Yosri

A protester surrounded by riot police officers raises his arms during an anti-government protest in Bangkok, Thailand February 28, 2021. REUTERS/Soe Zeya Tun

Mohamed Fahim inspects his house that was damaged by an intercepted missile in the aftermath of what Saudi-led coalition said was a thwarted Houthi missile attack, in Riyadh, Saudi Arabia, February 28, 2021. REUTERS/Ahmed Yosri

Mohamed Fahim inspects his house that was damaged by an intercepted missile in the aftermath of what Saudi-led coalition said was a thwarted Houthi missile attack, in Riyadh, Saudi Arabia, February 28, 2021. REUTERS/Ahmed Yosri REFILE - CORRECTING DATE

An Israeli-owned ship hit by an explosion in the strategic Gulf of Oman waterway is seen after arrival at a port in Dubai, United Arab Emirates February 28, 2021. REUTERS/Abdel Hadi Ramahi

An Israeli-owned ship hit by an explosion in the strategic Gulf of Oman waterway is seen after arrival at a port in Dubai, United Arab Emirates February 28, 2021. REUTERS/Abdel Hadi Ramahi

An Israeli-owned ship hit by an explosion in the strategic Gulf of Oman waterway is seen after arrival at a port in Dubai, United Arab Emirates February 28, 2021. REUTERS/Abdel Hadi Ramahi

The coffin of Captain Sir Tom Moore is carried by members of the Armed Forces during his funeral, amid the coronavirus disease (COVID-19) outbreak, in Bedford, Britain February 27, 2021. Joe Giddens/Pool via REUTERS NO REUSE AFTER 11.59PM ON MARCH 6TH 2021 WITHOUT WRITTEN CONSENT FROM GEMMA@CAPTAINTOM.ORG

Members of the armed forces attend the funeral of Captain Sir Tom Moore, amid the coronavirus disease (COVID-19) outbreak, in Bedford, Britain February 27, 2021. Joe Giddens/Pool via REUTERS NO REUSE AFTER 11.59PM ON MARCH 6TH 2021 WITHOUT WRITTEN CONSENT FROM GEMMA@CAPTAINTOM.ORG

Members of the armed forces attend the funeral of Captain Sir Tom Moore, amid the coronavirus disease (COVID-19) outbreak, in Bedford, Britain February 27, 2021. Joe Giddens/Pool via REUTERS NO REUSE AFTER 11.59PM ON MARCH 6TH 2021 WITHOUT WRITTEN CONSENT FROM GEMMA@CAPTAINTOM.ORG

Members of the armed forces attend the funeral of Captain Sir Tom Moore, amid the coronavirus disease (COVID-19) outbreak, in Bedford, Britain February 27, 2021. Joe Giddens/Pool via REUTERS NO REUSE AFTER 11.59PM ON MARCH 6TH 2021 WITHOUT WRITTEN CONSENT FROM GEMMA@CAPTAINTOM.ORG

The coffin of Captain Sir Tom Moore is carried by members of the Armed Forces during his funeral at Bedford Crematorium, amid the coronavirus disease (COVID-19) outbreak, in Bedford, Britain February 27, 2021. Joe Giddens/Pool via REUTERS NO REUSE AFTER 11.59PM ON MARCH 6TH 2021 WITHOUT WRITTEN CONSENT FROM GEMMA@CAPTAINTOM.ORG

The coffin of Captain Sir Tom Moore is carried by members of the Armed Forces during his funeral at Bedford Crematorium, amid the coronavirus disease (COVID-19) outbreak, in Bedford, Britain February 27, 2021. Joe Giddens/Pool via REUTERS NO REUSE AFTER 11.59PM ON MARCH 6TH 2021 WITHOUT WRITTEN CONSENT FROM GEMMA@CAPTAINTOM.ORG

The coffin of Captain Sir Tom Moore is carried by members of the Armed Forces during his funeral at Bedford Crematorium, amid the coronavirus disease (COVID-19) outbreak, in Bedford, Britain February 27, 2021. Joe Giddens/Pool via REUTERS NO REUSE AFTER 11.59PM ON MARCH 6TH 2021 WITHOUT WRITTEN CONSENT FROM GEMMA@CAPTAINTOM.ORG

The coffin of Captain Sir Tom Moore is carried by members of the Armed Forces during his funeral at Bedford Crematorium, amid the coronavirus disease (COVID-19) outbreak, in Bedford, Britain February 27, 2021. Joe Giddens/Pool via REUTERS NO REUSE AFTER 11.59PM ON MARCH 6TH 2021 WITHOUT WRITTEN CONSENT FROM GEMMA@CAPTAINTOM.ORG

Members of the Armed Forces attend the funeral of Captain Sir Tom Moore at Bedford Crematorium, amid the coronavirus disease (COVID-19) outbreak, in Bedford, Britain February 27, 2021. Joe Giddens/Pool via REUTERS NO REUSE AFTER 11.59PM ON MARCH 6TH 2021 WITHOUT WRITTEN CONSENT FROM GEMMA@CAPTAINTOM.ORG

A clergyman walks outside the Iversky monastery, which was heavily damaged by artillery and gun fire during a battle for a local airport between the armed forces of Ukraine and the separatist self-proclaimed Donetsk People's Republic, following a service in Donetsk, Ukraine, February 25, 2021. REUTERS/Alexander Ermochenko

A woman walks outside the Iversky monastery, which was heavily damaged by artillery and gun fire in the course of a battle for a local airport between the armed forces of Ukraine and the separatist self-proclaimed Donetsk People's Republic, following a service in Donetsk, Ukraine, February 25, 2021. REUTERS/Alexander Ermochenko

A woman walks outside the Iversky monastery, which was heavily damaged by artillery and gun fire in the course of a battle for a local airport between the armed forces of Ukraine and the separatist self-proclaimed Donetsk People's Republic, during a service in Donetsk, Ukraine, February 25, 2021. REUTERS/Alexander Ermochenko

Clergymen take part in a service at the Iversky monastery, which was heavily damaged by artillery and gun fire during a battle for a local airport between the armed forces of Ukraine and the separatist self-proclaimed Donetsk People's Republic, in Donetsk, Ukraine, February 25, 2021. REUTERS/Alexander Ermochenko

A view shows an icon during a service outside the Iversky monastery, which was heavily damaged by artillery and gun fire in the course of a battle for a local airport between the armed forces of Ukraine and the separatist self-proclaimed Donetsk People's Republic, in Donetsk, Ukraine, February 25, 2021. REUTERS/Alexander Ermochenko

People take part in a service outside the Iversky monastery, which was heavily damaged by artillery and gun fire during a battle for a local airport between the armed forces of Ukraine and the separatist self-proclaimed Donetsk People's Republic, in Donetsk, Ukraine, February 25, 2021. REUTERS/Alexander Ermochenko

An armed police officer provides security near the back entrance to the law courts after suspects accused of having supplied the bomb which killed Maltese anti-corruption journalist Daphne Caruana Galizia in 2017 arrived in court in Valletta, Malta, February 24, 2021. REUTERS/Darrin Zammit Lupi

An armed police officer provides security near the back entrance to the law courts after suspects accused of having supplied the bomb which killed Maltese anti-corruption journalist Daphne Caruana Galizia in 2017 arrived in court in Valletta, Malta, February 24, 2021. REUTERS/Darrin Zammit Lupi

An armed police officer provides security near the back entrance to the law courts after suspects accused of having supplied the bomb which killed Maltese anti-corruption journalist Daphne Caruana Galizia in 2017 arrived in court in Valletta, Malta, February 24, 2021. REUTERS/Darrin Zammit Lupi

An armed police officer provides security near the back entrance to the law courts after suspects accused of having supplied the bomb which killed Maltese anti-corruption journalist Daphne Caruana Galizia in 2017 arrived in court in Valletta, Malta, February 24, 2021. REUTERS/Darrin Zammit Lupi

An employee is seen aboard a modernized T-72 battle tank at the Kyiv Armoured Plant before the ceremony of handing over to the servicemen of Ukrainian armed forces in Kyiv, Ukraine February 24, 2021. REUTERS/Valentyn Ogirenko

Employees drive modernized T-72 battle tanks at the Kyiv Armoured Plant before the ceremony of handing over to the servicemen of Ukrainian armed forces in Kyiv, Ukraine February 24, 2021. REUTERS/Valentyn Ogirenko

Modernized T-72 battle tanks are seen at the Kyiv Armoured Plant before the ceremony of handing over to the servicemen of Ukrainian armed forces in Kyiv, Ukraine February 24, 2021. REUTERS/Valentyn Ogirenko

A journalist stands next to modernized T-72 battle tanks at the Kyiv Armoured Plant before the ceremony of handing over to the servicemen of Ukrainian armed forces in Kyiv, Ukraine February 24, 2021. REUTERS/Valentyn Ogirenko

An employee drives a modernized T-72 battle tank at the Kyiv Armoured Plant before the ceremony of handing over to the servicemen of Ukrainian armed forces in Kyiv, Ukraine February 24, 2021. REUTERS/Valentyn Ogirenko

An officer of Hong Kong's Correctional Service Department holds his arm after receiving a dose of the Sinovac Biotech's COVID-19 vaccine at a community vaccination center in Hong Kong, China, February 23, 2021. Paul Yeung/Pool via REUTERS

A Cathay Pacific pilot holds his arm after receiving China's Sinovac vaccine against the coronavirus disease (COVID-19) at a community vaccination centre in Hong Kong, China February 23, 2021. Peter Parks/Pool via REUTERS

A nurse holds her arm after receiving China's Sinovac vaccine against the coronavirus disease (COVID-19) at a community vaccination centre in Hong Kong, China February 23, 2021. Peter Parks/Pool via REUTERS

A nurse holds her arm after receiving China's Sinovac vaccine against the coronavirus disease (COVID-19) at a community vaccination centre in Hong Kong, China February 23, 2021. Peter Parks/Pool via REUTERS

Fathi Bashagha, Interior Minister of the Tripoli-based UN-backed Government of National Accord (GNA) speaks to Reuters after escaping an assassination attempt on him, in Tripoli, Libya, February 21, 2021. REUTERS/Hazem Ahmed

Fathi Bashagha, Interior Minister of the Tripoli-based UN-backed Government of National Accord (GNA) speaks to Reuters after escaping an assassination attempt on him, in Tripoli, Libya, February 21, 2021. REUTERS/Hazem Ahmed

Fathi Bashagha, Interior Minister of the Tripoli-based UN-backed Government of National Accord (GNA) speaks to Reuters after escaping an assassination attempt on him, in Tripoli, Libya, February 21, 2021. REUTERS/Hazem Ahmed

Fathi Bashagha, Interior Minister of the Tripoli-based UN-backed Government of National Accord (GNA) speaks to Reuters after escaping an assassination attempt on him, in Tripoli, Libya, February 21, 2021. REUTERS/Hazem Ahmed

Fathi Bashagha, Interior Minister of the Tripoli-based UN-backed Government of National Accord (GNA) speaks to Reuters after escaping an assassination attempt on him, in Tripoli, Libya, February 21, 2021. REUTERS/Hazem Ahmed

A Houthi follower looks out the window of a vehicle carrying the coffin of a Houthi fighter, killed in recent fighting against government forces in Yemen's oil-rich province of Marib, following a funeral procession in Sanaa, Yemen February 20, 2021. REUTERS/Khaled Abdullah

Honour guards carry the coffin of a Houthi fighter killed in recent fighting against government forces in Yemen's oil-rich province of Marib, during a funeral procession in Sanaa, Yemen February 20, 2021. REUTERS/Khaled Abdullah

Armed Houthi followers sit next to a coffin of a Houthi fighter killed in recent fighting against government forces in Yemen's oil-rich province of Marib, during a funeral procession in Sanaa, Yemen February 20, 2021. REUTERS/Khaled Abdullah

Armed Houthi followers ride on the back of a truck after participating in a funeral of Houthi fighters killed in recent fighting against government forces in Yemen's oil-rich province of Marib, in Sanaa, Yemen February 20, 2021. REUTERS/Khaled Abdullah

Honour guards carry coffins of Houthi fighters killed in recent fighting against government forces in Yemen's oil-rich province of Marib, during a funeral procession in Sanaa, Yemen February 20, 2021. REUTERS/Khaled Abdullah

Honour guards carry coffins of Houthi fighters killed in recent fighting against government forces in Yemen's oil-rich province of Marib, during a funeral procession in Sanaa, Yemen February 20, 2021. REUTERS/Khaled Abdullah

Honour guards carry the coffin of a Houthi fighter killed in recent fighting against government forces in Yemen's oil-rich province of Marib, during a funeral procession in Sanaa, Yemen February 20, 2021. REUTERS/Khaled Abdullah

Honour guards carry coffins of Houthi fighters killed in recent fighting against government forces in Yemen's oil-rich province of Marib, during a funeral procession in Sanaa, Yemen February 20, 2021. REUTERS/Khaled Abdullah

Shabaac Morgan holds on to the arm of her son, Marcel, as they leave the funeral of her husband and Marcel's father Dwight Morgan, 52, who died from complications from the coronavirus disease (COVID-19), at St. Paul AME Church in Houston, Texas, U.S., January 30, 2021. Shabaac's motorcycle club, the Steel Heels, arrived to the funeral on their bikes to show their support. REUTERS/Callaghan O'Hare SEARCH "FUNERALS O'HARE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

A board with the logo of Russian arms manufacturer Kalashnikov is on display in an office in Moscow, Russia February 8, 2021. Picture taken February 8, 2021. REUTERS/Maxim Shemetov

Weapons are on display in an office of Russian arms manufacturer Kalashnikov in Moscow, Russia February 8, 2021. Picture taken February 8, 2021. REUTERS/Maxim Shemetov

Houthi soldiers march during a funeral procession for Houthi fighters killed in recent fighting against government forces in Marib province, in Sanaa, Yemen February 17, 2021. REUTERS/Khaled Abdullah TPX IMAGES OF THE DAY

A driver looks from the window of a truck carrying the coffin of a Houthi fighter killed in recent fighting against government forces in Marib province, during a funeral in Sanaa, Yemen February 17, 2021. REUTERS/Khaled Abdullah

Honour guards carry the coffins of Houthi fighters killed during recent fighting against government forces in Marib province, during a funeral procession in Sanaa, Yemen February 17, 2021. REUTERS/Khaled Abdullah