How did presidents use military force to expand executive powers in the 20th century?

a. presidents have stripped the supreme court of its power to appoint military leaders.

b. presidents have ordered extensive military action without a declaration of war from congress.

c. presidents have used the military to prevent political opponents from organizing protests.

d. presidents have gained the power to command the armed forces from congress.

Where did the term “iron curtain” originate? the warsaw pact used the term iron curtain as a code word for communism. in a 1946 speech, british prime minister winston churchill said an iron curtain had fallen across the continent of europe. while visiting western europe in 1946, u.s. president harry truman commented that the mountains there looked like iron curtains. russian general secretary joseph stalin instructed citizens of eastern europe to hang iron curtains over their windows to protect themselves from stray bullets.