As a part of its recent geopolitical strategy, Japan is accelerating its arms export efforts in Asia to maintain a regional balance of power. The decision, though controversial due to Japan's post-WWII pacifist constitution, is seen as a necessary move in response to changing regional dynamics. This shift in policy seems to reflect Japan’s intent to bolster its technological and industrial base in the defence sector as well.

Since the end of World War II, Japan's pacifist constitution has strictly limited its engagement in overseas conflicts and the export of arms. This move signals a shift in Japan's self-imposed restrictions, a decision that is likely to be hotly debated internally, given the deep-seated societal values of peace and non-aggression.

In contrast, both the US and EU have long-established arms export industries that are significant components of their economies. They possess comprehensive legal frameworks and mechanisms to control arms exports, largely based on national security considerations and international obligations. This new Japanese move is similar, but it also represents a significant break from its historical stance.