A man wearing a beret walks near San Mames stadium, as the UEFA decides which venues will hold UEFA Euro Cup 2020 matches, in Bilbao, Spain, April 7, 2021. REUTERS/Vincent West 

Greg Sowers of Los Brown Berets de Colorado participates in the Colorado Inauguration March to fight for change for Black lives and indigenous lives after the inauguration of U.S. President Joe Biden, in Denver, Colorado, U.S. January 20, 2021. REUTERS/Alyson McClaran 

Greg Sowers (R) of Los Brown Berets de Colorado marches down Colfax Avenue with others after the inauguration of U.S. President Joe Biden, in Denver, Colorado, U.S. January 20, 2021. REUTERS/Alyson McClaran 

An anti-Brexit demonstrator wearing a beret with the EU flag design on it protests outside of the Houses of Parliament in London, Britain, October 21, 2020. REUTERS/Toby Melville 

An anti-Brexit demonstrator wearing a beret with the EU flag design on it protests outside of the Houses of Parliament in London, Britain, October 21, 2020. REUTERS/Toby Melville 

Members of Russia's National Guard take an examination to gain the right to wear the maroon beret, the symbol of their professional status, at a training ground outside the village of Yemelyanovo in the Republic of Tatarstan, Russia October 1, 2020. Picture taken October 1, 2020. REUTERS/Alexey Nasyrov 

A member of Russia's National Guard passes through an obstacle course as he takes an examination to gain the right to wear the maroon beret, the symbol of their professional status, at a training ground outside the village of Yemelyanovo in the Republic of Tatarstan, Russia October 1, 2020. Picture taken October 1, 2020. REUTERS/Alexey Nasyrov 

A member of Russia's National Guard passes through an obstacle course as he takes an examination to gain the right to wear the maroon beret, the symbol of the professional status, at a training ground outside the village of Yemelyanovo in the Republic of Tatarstan, Russia October 1, 2020. Picture taken October 1, 2020. REUTERS/Alexey Nasyrov 

Members of Russia's National Guard pass through an obstacle course as they take an examination to gain the right to wear the maroon beret, the symbol of their professional status, at a training ground outside the village of Yemelyanovo in the Republic of Tatarstan, Russia October 1, 2020. Picture taken October 1, 2020. REUTERS/Alexey Nasyrov 

Members of Russia's National Guard pass through an obstacle course as they take an examination to gain the right to wear the maroon beret, the symbol of their professional status, at a training ground outside the village of Yemelyanovo in the Republic of Tatarstan, Russia October 1, 2020. Picture taken October 1, 2020. REUTERS/Alexey Nasyrov 

Members of Russia's National Guard take an examination to gain the right to wear the maroon beret, the symbol of their professional status, at a training ground outside the village of Yemelyanovo in the Republic of Tatarstan, Russia October 1, 2020. Picture taken October 1, 2020. REUTERS/Alexey Nasyrov TPX IMAGES OF THE DAY 

A demonstrator wearing a Black Panther beret takes part in a protest against the death in Minneapolis police custody of George Floyd, in New York City, New York, U.S., June 6, 2020. REUTERS/Eduardo Munoz 

A beret-clad paratrooper from the U.S. Army's 82nd Airborne Division gathers with fellow soldiers for a ceremony marking the completion of their military exercises with commandos from the Colombian Army's 2nd Special Forces Battalion at the Tolemaida base, Colombia January 27, 2020. Picture taken January 27, 2020. REUTERS/Jonathan Drake 

Beret-clad paratroopers from the U.S. Army's 82nd Airborne Division gather for a ceremony marking the completion of their military exercises with commandos from the Colombian Army's 2nd Special Forces Battalion at the Tolemaida base, Colombia January 27, 2020. Picture taken January 27, 2020. REUTERS/Jonathan Drake 

Beret-clad commandos from the Colombian Army's 2nd Special Forces Battalion gather for a ceremony marking the completion of their military exercises with paratroopers from the U.S. Army's 82nd Airborne Division at the Tolemaida base, Colombia January 27, 2020. Picture taken January 27, 2020. REUTERS/Jonathan Drake 

Beret-clad commandos from the Colombian Army's 2nd Special Forces Battalion are silhouetted before a ceremony marking the completion of their military exercises with paratroopers from the U.S. Army's 82nd Airborne Division at the Tolemaida base, Colombia January 27, 2020. Picture taken January 27, 2020. REUTERS/Jonathan Drake 

Beret-clad commandos from the Colombian Army's 2nd Special Forces Battalion gather for a ceremony marking the completion of their military exercises with paratroopers from the U.S. Army's 82nd Airborne Division at the Tolemaida base, Colombia January 27, 2020. Picture taken January 27, 2020. REUTERS/Jonathan Drake 

Beret-clad commandos from the Colombian Army's 2nd Special Forces Battalion are silhouetted before a ceremony marking the completion of their military exercises with paratroopers from the U.S. Army's 82nd Airborne Division at the Tolemaida base, Colombia January 27, 2020. Picture taken January 27, 2020. REUTERS/Jonathan Drake 

Beret-clad commandos from the Colombian Army's 2nd Special Forces Battalion gather for a ceremony marking the completion of their military exercises with paratroopers from the U.S. Army's 82nd Airborne Division at the Tolemaida base, Colombia January 27, 2020. REUTERS/Jonathan Drake 

An EU supporter looks towards the Big Ben clocktower as she demonstrates outside the Houses of Parliament in London, Britain, January 22, 2020. REUTERS/Toby Melville 

Anti-Brexit badges on a protester's beret are pictured during a demonstration in front of the British embassy in Brussels, Belgium December 5, 2019. REUTERS/Francois Lenoir 

Anti-Brexit badges on a protester's beret are pictured during a demonstration in front of the British embassy in Brussels, Belgium December 5, 2019. REUTERS/Francois Lenoir 

A soldier adjust his beret nearby an armoured vehicle ahead of a NATO leaders summit at the Grove in Watford, Britain December 3, 2019. REUTERS/Yves Herman 

A military veteran wears a poppy in his beret during the Remembrance Sunday ceremony at the War Memorial cenotaph in Floriana, Malta November 10, 2019. REUTERS/Darrin Zammit Lupi 

Servicemen of an Interior Ministry's special division take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus September 24, 2019. REUTERS/Vasily Fedosenko 

Servicemen of an Interior Ministry's special division take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus September 24, 2019. REUTERS/Vasily Fedosenko 

Servicemen of an Interior Ministry's special division take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus September 24, 2019. REUTERS/Vasily Fedosenko 

Servicemen of an Interior Ministry's special division take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus September 24, 2019. REUTERS/Vasily Fedosenko 

Servicemen of an Interior Ministry's special division take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus September 24, 2019. REUTERS/Vasily Fedosenko 

Servicemen of an Interior Ministry's special division take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus September 24, 2019. REUTERS/Vasily Fedosenko 

French President Emmanuel Macron is greeted by a hostess wearing a basque beret as he tours the exhibition hall above the international press center on the opening day of the G7 summit, in Anglet, France August 24, 2019. Ian Langsdon/Pool via REUTERS 

French President Emmanuel Macron and former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attend a ceremony in memory of marines and the famed Kieffer commandos who took part to D-Day landings, in Colleville-Montgomery, as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

French President Emmanuel Macron and former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attend a ceremony in memory of marines and the famed Kieffer commandos who took part to D-Day landings, in Colleville-Montgomery, as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

French President Emmanuel Macron attends a ceremony in memory of marines and the famed Kieffer's green berets commandos who took part to D-Day landings, in Colleville-Montgomery, as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

Former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attends a ceremony in memory of marines and the famed Kieffer commandos who took part to D-Day landings, in Colleville-Montgomery, as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

French President Emmanuel Macron attends a ceremony in memory of marines and the famed Kieffer's green berets commandos who took part to D-Day landings, in Colleville-Montgomery, as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

Former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attends a ceremony in memory of marines and the famed Kieffer commandos who took part to D-Day landings, in Colleville-Montgomery, as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

French President Emmanuel Macron and former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attend a ceremony in memory of marines and the famed Kieffer commandos who took part to D-Day landings, in Colleville-Montgomery, as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

French President Emmanuel Macron and former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attend a ceremony in memory of marines and the famed Kieffer commandos who took part to D-Day landings, in Colleville-Montgomery, as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

French President Emmanuel Macron arrives to attend a ceremony in memory of marines and the famed Kieffer's green berets commandos who took part to D-Day landings, in Colleville-Montgomery as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

French President Emmanuel Macron arrives to attend a ceremony in memory of marines and the famed Kieffer's green berets commandos who took part to D-Day landings, in Colleville-Montgomery as part of the 75th anniversary of the D-Day, France, June 6, 2019. REUTERS/Christian Hartmann 

The green beret of former member of French Captain Philippe Kieffer's commando Leon Gautier, 96 years old, is seen as he attends an interview with Reuters in Ouistreham, France, May 13, 2019. Picture taken May 13, 2019. REUTERS/Christian Hartmann 

Former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attends an interview with Reuters in Ouistreham, France, May 13, 2019. Picture taken May 13, 2019. REUTERS/Christian Hartmann 

Former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attends an interview with Reuters in Ouistreham, France, May 13, 2019. Picture taken May 13, 2019. REUTERS/Christian Hartmann 

Former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attends an interview with Reuters in Ouistreham, France, May 13, 2019. Picture taken May 13, 2019. REUTERS/Christian Hartmann 

Former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attends an interview with Reuters in Ouistreham, France, May 13, 2019. Picture taken May 13, 2019. REUTERS/Christian Hartmann 

Former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attends an interview with Reuters in Ouistreham, France, May 13, 2019. Picture taken May 13, 2019. REUTERS/Christian Hartmann 

Former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, attends an interview with Reuters in Ouistreham, France, May 13, 2019. Picture taken May 13, 2019. REUTERS/Christian Hartmann 

Former member of French Captain Philippe Kieffer's green berets commando Leon Gautier, 96 years old, adjusts his beret as he attends an interview with Reuters in Ouistreham, France, May 13, 2019. Picture taken May 13, 2019. REUTERS/Christian Hartmann 

Brazilian President Jair Bolsonaro wears a red beret as he attends a ceremony to celebrate the 130th anniversary of the Military School in Rio de Janeiro, Brazil May 6, 2019. REUTERS/Ricardo Moraes 

Brazilian President Jair Bolsonaro puts on a red beret as he attends a ceremony to celebrate the 130th anniversary of the Military School in Rio de Janeiro, Brazil May 6, 2019. REUTERS/Ricardo Moraes 

Servicemen of an Interior Ministry's special division take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus April 16, 2019. REUTERS/Vasily Fedosenko 

A serviceman of an Interior Ministry's special division fires during an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus April 16, 2019. REUTERS/Vasily Fedosenko 

A serviceman (L) of an Interior Ministry's special division spars in a martial arts test while taking an examination to gain the right to join the ministry's "Maroon Berets" elite unit in Minsk, Belarus April 16, 2019. REUTERS/Vasily Fedosenko 

Servicemen of an Interior Ministry's special division rest after passing through an obstacle course as they take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus April 16, 2019. REUTERS/Vasily Fedosenko 

Servicemen of an Interior Ministry's special division pass through an obstacle course as they take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus April 16, 2019. REUTERS/Vasily Fedosenko 

Servicemen of an Interior Ministry's special division pass through an obstacle course as they take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus April 16, 2019. REUTERS/Vasily Fedosenko 

Servicemen of an Interior Ministry's special division pass through an obstacle course as they take an examination to gain the right to join the ministry's "Maroon Berets" elite unit near the village of Valowshchyna, Belarus April 16, 2019. REUTERS/Vasily Fedosenko