Japanese politicians from both ruling and opposition blocs have called for an active debate on its nuclear weapons policy—in the wake of Russia’s invasion of Ukraine. Meanwhile, experts believe Japan will likely revamp its military beyond its self-defense force, potentially changing the world security landscape. In a recent televised program, former Prime Minister Shinzo Abe of the ruling Liberal Democratic Party (LDP) said Japan should break a long-standing taboo and discuss the idea of “sharing” nuclear weapons with allies by letting them base some of the weapons on Japanese soil. “Japan is a signatory to the Nuclear Non-Proliferation Treaty and has its three non-nuclear principles, but it should not treat as taboo discussions on the reality of how the world is kept safe,” Abe said, The Japan Times reported. However, Prime Minister Fumio Kishida of LDP swiftly rejected the idea of hosting U.S. nuclear weapons as a deterrent. “It is …