What Western powers were where in Southeast Asia?

Six western powers were in Southeast Asia. They are France, Great Britain, the Netherlands, Portugal, the Dutch, Spain, and the United States.

Explanation:

I researched the answer. My research lead me to the UNIVERSITY OF HAWAI'I AT MANOA. Here is the link if you want to read the article: https://guides.library.manoa.hawaii.edu/c.php?g=105536&p=687513.

the answer is the government.

a drastic rise in oil prices ended decades of postwar.