Japan has abandoned its post war order as it is now boosting up its military, it has okayed a spending budget which will make it the third largest defense spender on earth, and it will begin developing its own hypersonic missiles. As we read in the Japan Times:

For decades, Japan has based its international clout on economic competitiveness, not military might.
But, with China’s lengthening shadow darkening its doorstep, Japan now seems to be ⤢abandoning its pacifist postwar security policy — which capped defense spending at about 1% of gross domestic product and shunned offensive capabilities — in favor of assuming a central role in maintaining security in the Indo-Pacific region.

Last month, Japan unveiled a bold new National Security Strategy, which includes a plan to ⤢double defense expenditure within five years. That spending — amounting to some $320 billion — will fund Japan’s largest military build-up since World War II and implies the world’s ⤢third-largest defense budget after the U.S. and China. Importantly, the new strategy includes acquisition of ⤢preemptive counterstrike capabilities, such as Tomahawk cruise missiles from the United States and the ⤢development of its own hypersonic weapons.

Japan began laying the groundwork for this shift under former Prime Minister ⤢Abe Shinzo, who was assassinated last July. On Abe’s watch, Japan ⤢increased defense spending by about 10%, and, more significantly, reinterpreted (with parliament’s approval) the country’s U.S.-imposed “peace Constitution” to allow the military to ⤢mobilize overseas for the first time since World War II. Abe also sought to amend Article 9 of the Constitution, which renounces “the threat or use of force” by Japan, but his efforts were stymied by ⤢popular protests.