Airborne troops from Japan, U.S., Britain and Australia take part in a new year joint military drill at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Member of Japan's Ground Self-Defense Force 1st Airborne Brigade take part in a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Member of Japan's Ground Self-Defense Force 1st Airborne Brigade show their skill during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

A U.S. airborne troop soldier prepares for landing during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Troops from Japan's Ground Self-Defense Force 1st Airborne Brigade parachute from U.S. Air Force 374th Airlift Wing's C-130J aircraft during a New Year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Troops from Japan's Ground Self-Defense Force 1st Airborne Brigade parachute from a C-130 aircraft during a New Year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Troops from Japan's Ground Self-Defense Force 1st Airborne Brigade parachute from U.S. Air Force 374th Airlift Wing's C-130J aircraft during a New Year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

A member of Japan's Ground Self-Defense Force 1st Airborne Brigade takes part in a New Year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

A member of Japan's Ground Self-Defense Force 1st Airborne Brigade takes part in a New Year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Japan's Defence Minister Yasukazu Hamada inspects a New Year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

A member of Japan's Ground Self-Defense Force 1st Airborne Brigade takes part in a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Airborn troops from the U.S. and British Army dive from Japan's Self-Defense Force's aircraft during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Members of Japan's Ground Self-Defense Force 1st Airborne Brigade take part in a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Airborne troops from Japan, U.S., Britain and Australia take part in a new year joint military drill at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Airborne troops from Japan, U.S. and Britain take part in a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

A member of Japan's Ground Self-Defense Force 1st Airborne Brigade shows his skill during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Soliders of airborne troops dive during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Soliders of airborne troops dive during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Soliders of airborne troops dive during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Members of the Japan's Ground Self-Defense Force 1st Airborne Brigade are carried by a rope from a CH-47 JA Cargo Helicopter during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Troops from Japan's Ground Self-Defense Force 1st Airborne Brigade dive from U.S. Air Force 374th Airlift Wing's C-130J aircraft during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Troops from Japan's Ground Self-Defense Force 1st Airborne Brigade dive from U.S. Air Force 374th Airlift Wing's C-130J aircraft during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Airborn troops from the U.S. and British Army dive from Japan's Self-Defense Force's C-130C aircraft during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato 

Soldiers of the airborn troop from the British Army dive from Japan's Self-Defense Force's C-130C aircraft during a new year joint military drill among Japan, U.S., Britain and Australia at Narashino exercise field in Funabashi, east of Tokyo, Japan January 8, 2023. REUTERS/Issei Kato TPX IMAGES OF THE DAY 

Workers of Buysell Technologies sort kimonos bought from private sellers at their warehouse in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

Buysell Technologies worker checks kimonos on their warehouse shelf after the clothes were sorted in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

Workers of Buysell Technologies sort stamps bought from private sellers at their warehouse in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

Buysell Technologies worker sorts out luxury-brand bags bought from private sellers at their warehouse in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

Kimonos collected from private sellers are kept in boxes as they wait to be sorted at a Buysell Technologies warehouse in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

Buysell Technologies worker takes photo of a luxury-brand bag bought from a private seller, in order to resell it online, at their warehouse in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

Buysell Technologies worker takes photo of a kimono bought from a private seller, destined for online resale, at their warehouse in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

Jewellery which Buysell Technologies purchased from private sellers is kept in boxes after assessment at their warehouse in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

Buysell Technologies worker assesses a gold ring bought from a private seller at their warehouse in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

Buysell Technologies worker sorts out stamps bought from private sellers at their warehouse in Funabashi, Chiba Prefecture, Japan, December 8, 2020. Picture taken December 8, 2020. REUTERS/Kim Kyung-Hoon 

A teacher talks to a student through a plastic sheet to prevent coronavirus disease (COVID-19) infection at Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

Children, wearing protective face masks amid the coronavirus disease (COVID-19) outbreak, arrive at Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

Children, wearing protective face masks amid the coronavirus disease (COVID-19) outbreak, study at a school room where plastic sheets are installed on desks at Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

A child wearing a protective face mask amid the coronavirus disease (COVID-19) outbreak, attends a class at Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

A child wearing a face shield amid the coronavirus disease (COVID-19) outbreak, studies at a school room where plastic sheets are installed on desks at Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

A student wearing a protective face mask amid coronavirus disease (COVID-19) outbreak, stands on a mark for social distancing at a classroom of Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

A teacher, wearing a protective face shield amid the coronavirus disease (COVID-19) outbreak, and students use sign language along with music instead of singing a song during the music class at Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

Students wearing protective face masks amid the coronavirus disease (COVID-19) outbreak, clap along instead of singing a song during a music class at Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon TPX IMAGES OF THE DAY 

A teacher wearing a face shield teaches a student through a plastic sheet to prevent coronavirus disease (COVID-19) infection at a classroom of Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

Students wearing protective face masks stand on marks for social distancing while they wash their hands amid the coronavirus disease (COVID-19) outbreak at Takanedai Daisan elementary school, which practices various methods of social distance in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

A student wearing a protective face mask makes a presentation behind a plastic sheet to prevent the coronavirus disease (COVID-19) infection during an english class at Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

Students wearing protective face masks are seen behind a plastic sheet to prevent the coronavirus disease (COVID-19) infection during an english class at Takanedai Daisan elementary school, which practices various methods of social distance in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

A student wearing a protective face mask makes a presentation behind a plastic sheet to prevent the coronavirus disease (COVID-19) infection during an english class at Takanedai Daisan elementary school, which practices various methods of social distancing in order to prevent the infection, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

Children wearing protective face masks amid the coronavirus disease (COVID-19) outbreak, arrive at Takanedai Daisan elementary school, which practices various methods of social distance in order to prevent the infections, in Funabashi, east of Tokyo, Japan July 16, 2020. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull (C) shakes hands with Japanese Prime Minister Shinzo Abe in front of a Bushmaster military vehicle at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon TPX IMAGES OF THE DAY 

Australian Prime Minister Malcolm Turnbull looks around a Bushmaster military vehicle at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

A Japanese Ground Self-Defense Force member stands in front of PAC-3 missile interceptor at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull (R) and Japanese Prime Minister Shinzo Abe arrive at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull (R) and Japanese Prime Minister Shinzo Abe arrive at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull rides in a Bushmaster military vehicle at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull (R) and Japanese Prime Minister Shinzo Abe ride in Bushmaster military vehicle at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull and Japanese Prime Minister Shinzo Abe stand in front of a Bushmaster military vehicle at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull (L) shakes hands with Japanese Prime Minister Shinzo Abe in front of Bushmaster military vehicle at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull (2nd R) and Japanese Prime Minister Shinzo Abe listen an explanation in front of a PAC-3 missile interceptor at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull (C) shakes hands with a Japanese Ground Self-Defense Force officer as he insects PAC-3 missile interceptors with Japanese Prime Minister Shinzo Abe (R) at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon 

Australian Prime Minister Malcolm Turnbull (C) shakes hands with Japanese Prime Minister Shinzo Abe in front of a Bushmaster military vehicle at Narashino exercise field in Funabashi, east of Tokyo, Japan January 18, 2018. REUTERS/Kim Kyung-Hoon