The U.S. ambassador to the United Nations made a rare visit to Tokyo on Thursday, following a four-day trip to South Korea, as part of a push to bolster the U.N.¡¯s relevance together with its two allies ¡ª which both currently sit on the Security Council ¡ª and counter nuclear-armed North Korea.

The U.S. will also continue to support the expansion of the U.N. Security Council, as well as the granting of a permanent seat to countries including Japan, Linda Thomas-Greenfield, the U.S. envoy to the U.N., said during an event at the National Graduate Institute for Policy Studies on Thursday.

¡°The Security Council of 70 years ago does not reflect the realities of today,¡± Thomas-Greenfield said, noting that the U.S. shifted its stance toward supporting Security Council reform in 2021.