Japan, which has a constitution that bans land, sea, and air forces, is planning on doubling its defense budget within five years. The spending increase would bring Japan to the world's third-highest spender behind the U.S. and China. Analysts see the change in defense spending as largely due to Japan's anxieties about Russia growing closer to China. Japanese officials still say they are abiding by their constitution by forswearing preemptive strikes. Japan will also have to pay for this defense spending, a fact which Japanese officials haven't sorted out yet.