The US-Japan alliance split by Taiwan. There is no automatic intervention.

The Sino-Japanese conflict sparked by the Taiwan issue is shaking the US-Japan alliance.

Japan expected firm support from the United States, but the credibility of the alliance was put to the test as the United States took an ambiguous stance.

After Japanese Prime Minister Takaichi’s remarks about “intervening in Taiwan in case of emergency,” China immediately began military pressure and economic retaliation.

The Japanese government was the first to visit the United States.

However, President Trump first emphasized the content of the phone call with China and presented a message that was completely different from Japan’s expectations.

The analysis is that the United States is putting the Taiwan issue and the Sino-Japanese conflict under economic negotiations with China.

The enormous burden that must be borne if excessive support for Japan provokes China and leads to military provocations also causes the United States to maintain strategic ambiguity.

China is also well aware of this situation.

This incident clearly revealed the structural weaknesses of the US-Japan alliance.

Japanese security experts worry that the U.S.-Japan alliance may not work in real situations, with automatic intervention in the event of an emergency in Taiwan virtually unguaranteed.

The Taiwan issue clearly reveals how differently the United States and Japan view the same situation when it concerns their own interests.

As the ‘common threat perception’, the core of the alliance, was shaken, the US-Japan relationship, which was considered the world’s most solid alliance, was put to the test.