U.S. allies in East Asia are becoming increasingly worried about how the outcome of the U.S. presidential election in November will affect Washington¡¯s East Asia policy.

If former U.S. President Donald Trump wins the election, will there be a drastic change in policy? What are the concerns for the U.S.-Japan alliance?

As Trump overwhelms his rivals in the Republican primary polls, it is becoming increasingly necessary to think about how the world would be impacted by the ¡°if Trump¡± scenario.