Bill Emmott Chairman of the IISS Trustees and Chairman of the Japan Society of the UK speaks during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

Bill Emmott Chairman of the IISS Trustees and Chairman of the Japan Society of the UK speaks during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

Yuka Koshino International Institute for Strategic Studies (IISS) and Research Fellow for Security and Technology Policy speaks during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

Yuka Koshino International Institute for Strategic Studies (IISS) and Research Fellow for Security and Technology Policy speaks during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

Robert Ward International Institute for Strategic Studies (IISS) Japan Chair and Director of Geo-economics and Strategy speaks during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

Robert Ward International Institute for Strategic Studies (IISS) Japan Chair and Director of Geo-economics and Strategy speaks during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

Robert Ward International Institute for Strategic Studies (IISS) Japan Chair and Director of Geo-economics and Strategy speaks during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

(L TO R) Bill Emmott Chairman of the IISS Trustees and Chairman of the Japan Society of the UK, Yuka Koshino International Institute for Strategic Studies (IISS) and Research Fellow for Security and Technology Policy and Robert Ward International Institute for Strategic Studies (IISS) Japan Chair and Director of Geo-economics and Strategy, speak during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

(L TO R) Bill Emmott Chairman of the IISS Trustees and Chairman of the Japan Society of the UK, Yuka Koshino International Institute for Strategic Studies (IISS) and Research Fellow for Security and Technology Policy and Robert Ward International Institute for Strategic Studies (IISS) Japan Chair and Director of Geo-economics and Strategy, speak during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

(L TO R) Bill Emmott Chairman of the IISS Trustees and Chairman of the Japan Society of the UK, Yuka Koshino International Institute for Strategic Studies (IISS) and Research Fellow for Security and Technology Policy and Robert Ward International Institute for Strategic Studies (IISS) Japan Chair and Director of Geo-economics and Strategy, speak during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)

(L TO R) Bill Emmott Chairman of the IISS Trustees and Chairman of the Japan Society of the UK, Yuka Koshino International Institute for Strategic Studies (IISS) and Research Fellow for Security and Technology Policy and Robert Ward International Institute for Strategic Studies (IISS) Japan Chair and Director of Geo-economics and Strategy, speak during a news conference at the Foreign Correspondents' Club of Japan on May 12, 2022, in Tokyo, Japan. Guests spoke about the possible consequences of Russia's war on Ukraine for Japan, which has joined the West's tough sanctions against Russia for the first time. (Photo by Rodrigo Reyes Marin/AFLO)