Taiwan’s AAV7 amphibious assault vehicle fires in the air during an Amphibious landing drill as part of the Han Kuang military exercise in Pingtung, Taiwan, July 28, 2022. REUTERS/Ann Wang 

Ukrainian service members clean a tank cannon at their position, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine July 23, 2022. REUTERS/Sofiia Gatilova. 

A Caracal air assault vehicle manufactured by Rheinmetall is displayed at the Eurosatory international defense and security trade fair in Villepinte, near Paris, France June 13, 2022. REUTERS/Benoit Tessier 

A landing craft, air cushion (LCAC) assigned to the Wasp-class amphibious assault ship USS Kearsarge (LHD 3) sails past the ship during the Baltops 22 exercise in Baltic Sea, June 8, 2022. Picture taken June 8, 2022. REUTERS/Stoyan Nenov 

Ukrainian service members of the Air Assault Forces attend military drills in Lviv region, Ukraine, in this handout picture released February 1, 2022. Press service of the Ukrainian Air Assault Forces/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. 

People look at a display of VN16 amphibious armoured assault vehicle at the China International Aviation and Aerospace Exhibition, or Airshow China, in Zhuhai, Guangdong province, China September 29, 2021. REUTERS/Aly Song 

Members of the British armed forces 16 Air Assault Brigade arrive at RAF Brize Norton base after being evacuated from Kabul, in Oxfordshire, Britain August 29, 2021. Jonathan Brady/Pool via REUTERS 

Members of the British armed forces 16 Air Assault Brigade disembark an aircraft after being evacuated from Kabul, at RAF Brize Norton base in Oxfordshire, Britain August 29, 2021. Jonathan Brady/Pool via REUTERS 

Members of the British armed forces 16 Air Assault Brigade arrive at RAF Brize Norton base after being evacuated from Kabul, in Oxfordshire, Britain August 29, 2021. Jonathan Brady/Pool via REUTERS 

Members of the British armed forces 16 Air Assault Brigade disembark an aircraft after landing at RAF Brize Norton, in Oxfordshire, Britain August 29, 2021. Jonathan Brady/Pool via REUTERS 

A crew member opens the door of an RAF Voyager aircraft carrying members of the British armed forces 16 Air Assault Brigade after landing at Brize Norton, Britain August 28, 2021. Alastair Grant/ Pool via REUTERS 

Members of the British armed forces 16 Air Assault Brigade disembark a RAF Voyager aircraft after landing at Brize Norton, Britain August 28, 2021. Alastair Grant/ Pool via REUTERS 

A British Royal Airforce Voyager aircraft a carrying members of the British armed forces 16 Air Assault Brigade arrives at Brize Norton, Britain August 28, 2021. Alastair Grant/ Pool via REUTERS 

Members of the British armed forces 16 Air Assault Brigade disembark a RAF Voyager aircraft after landing at Brize Norton, Britain August 28, 2021. Alastair Grant/ Pool via REUTERS 

Members of the British armed forces 16 Air Assault Brigade walk to the air terminal after disembarking a Royal Airforce Voyager aircraft at Brize Norton, Britain August 28, 2021. Alastair Grant/ Pool via REUTERS 

A British Royal Airforce Voyager aircraft a carrying members of the British armed forces 16 Air Assault Brigade arrives at Brize Norton, Britain August 28, 2021. Alastair Grant/ Pool via REUTERS 

A member of the British armed forces 16 Air Assault Brigade disembarks a RAF Voyager aircraft after landing at Brize Norton, Britain August 28, 2021. Alastair Grant/ Pool via REUTERS 

A member of the British armed forces 16 Air Assault Brigade disembarks a RAF Voyager aircraft after landing at Brize Norton, Britain August 28, 2021. Alastair Grant/ Pool via REUTERS 

Members of the British armed forces 16 Air Assault Brigade walk to the air terminal after disembarking a Royal Airforce Voyager aircraft at Brize Norton, Britain August 28, 2021. Alastair Grant/ Pool via REUTERS 

Chart of calendar days on which Chinese flights made incursions into Taiwanese air space. 

Since mid-September, China has been sending war planes into Taiwan’s Air Defense Identification Zone. The move is sapping the Taiwanese military, which has responded by scrambling its aircraft to confront the Chinese planes. 

A Soldier at the U.S. Army Air Assault School conducts training while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston TPX IMAGES OF THE DAY 

Soldiers at the U.S. Army Air Assault School conduct training while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston TPX IMAGES OF THE DAY 

Soldiers at the U.S. Army Air Assault School wait to rappel from a CH-47 Chinook helicopter while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston 

Soldiers at the U.S. Army Air Assault School conduct training while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston 

A Soldier at the U.S. Army Air Assault School rappels from a CH-47 Chinook helicopter while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston 

Soldiers assigned to the 1st Brigade, 101st Airborne Division (Air Assault) train with a MK-19 automatic grenade launcher while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston 

Soldiers at the U.S. Army Air Assault School wait to rappel from a CH-47 Chinook helicopter while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston 

Soldiers assigned to the 1st Brigade, 101st Airborne Division (Air Assault) conduct first aid training while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston 

A Soldier at the U.S. Army Air Assault School rappels from a CH-47 Chinook helicopter while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston 

Soldiers assigned to the 1st Brigade, 101st Airborne Division (Air Assault) conduct training while adhering to coronavirus disease (COVID-19) recommendations, at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston 

Instructors at The United States Army Air Assault School observe training while wearing masks to prevent the spread of coronavirus disease (COVID-19), at Fort Campbell, Kentucky, U.S. December 3, 2020. REUTERS/Bryan Woolston 

U.S. Secret Service counter assault team snipers stand guard as Air Force Two arrives at LaGuardia airport with Vice President Mike Pence on his way to attend ceremonies marking the 19th anniversary of the September 11, 2001 attacks on the World Trade Center at the 911 Memorial & Museum in New York City, New York, U.S., September 11, 2020. REUTERS/Eduardo Munoz 

A soldier attending The United States Army Air Assault School prepares to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

Soldiers attending The United States Army Air Assault School prepare to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

Soldiers attending The United States Army Air Assault School rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

Soldiers attending The United States Army Air Assault School rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

Soldiers attending The United States Army Air Assault School prepare to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

A soldier attending The United States Army Air Assault School rappels from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

A soldier attending The United States Army Air Assault School rappels from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

Soldiers attending The United States Army Air Assault School prepare to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

Soldiers attending The United States Army Air Assault School prepare to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

Soldiers attending The United States Army Air Assault School rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

A soldier attending The United States Army Air Assault School rappels from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

A soldier attending The United States Army Air Assault School prepares to rappel from a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

A UH-60 Blackhawk helicopter hovers at The United States Army Air Assault School on Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

A soldier attending The United States Army Air Assault School attaches cargo beneath a UH-60 Blackhawk helicopter at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

A UH-60 Blackhawk helicopter hovers at The United States Army Air Assault School on Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

A UH-60 Blackhawk helicopter hovers at The United States Army Air Assault School on Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

Soldiers attending The United States Army Air Assault School march to class at Fort Campbell, Kentucky. U.S., Feb 13, 2020. REUTERS/Bryan Woolston 

Soldiers assigned to A Company, 326th Brigade Engineer Battalion, 101 Airborne Division (AirAssault) detonate a 40 pound demolition charge during a training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston 

Soldiers assigned to A Company, 326th Brigade Engineer Battalion, 101 Airborne Division (AirAssault) prepare a 40 pound demolition charge for detonation during a training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston 

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), advances toward an objective during a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston 

Soldiers assigned to A Company, 326th Brigade Engineer Battalion, 101 Airborne Division (AirAssault) detonate an explosive breeching charge during a training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston 

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), pauses to observe an objective during a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston 

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), participates in a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston 

Soldiers assigned to A Company, 326th Brigade Engineer Battalion, 101 Airborne Division (AirAssault) detonate a explosive breeching charge during a training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston 

A soldier assigned to 1st Battalion 327th Infantry Regiment, 101st Airborne Division (Air Assault), participates in a squad live fire training exercise at Fort Campbell, Kentucky, U.S., February 12, 2020. REUTERS/Bryan Woolston