Plutonium can be used to create nuclear weapons, and Washington is concerned about the potential threat this poses to nuclear weapon non-proliferation. " Two interconnected risks confront the Indo-Pacific today: climate change and nuclear issues. The US-Japan alliance serves as a cornerstone for addressing such challenges. Prime Minister Kishida’s visit to the United States in April 2024 showcased the security and economic ties between the two countries. In the words of President Joe Biden, the US-Japan alliance is “stronger than it’s ever been.” With increased policy alignment, the alliance has strong potential for robust collaboration on climate and nuclear issues..