Where was U. S. containment policy 1st
applied?

Moscow

Explanation:

The United States developed its policy of containment to prevent communism from spreading further into Europe and the rest of the world. The concept was first outlined in George Kennan's "Long Telegram," which he sent from the U.S. Embassy in Moscow.Aug

explanation:

queer

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.