The foreign and defense ministers of Japan and the United States on Friday pledged an "unshakeable commitment" to strengthening their alliance ahead of the 60th anniversary of the signing of a security treaty."Our alliance has played and will continue to play an integral role in ensuring the peace and security of our two countries, while realizing our shared vision of a free and open Indo-Pacific," they said in a joint statement.Around 54,000 American troops are stationed in Japan under the Treaty of Mutual Cooperation and Security, signed on Jan. 19, 1960. It allows them to respond quickly…READ FULL ARTICLE