Which promises did the Truman Doctrine include? Check all that apply. to stop the spread of communism around the world to economically support countries threatened by communism to threaten to invade the Soviet Union to bring an end to communism to protect countries in danger of falling behind the Iron Curtain to open up talks with the Soviet Union to ensure peace around the world

to stop the spread of communism around the world

to economically support countries threatened by communism

to protect countries in danger of falling behind the iron curtain

Explanation:

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1, 2, and 4

Explanation:

the answer is a

explanation:

the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation.