This is my best guess on these plz do not quote me :)
14) T
15) T
16) F
17) F
18) T
19) F
20) T
Kennedy just sent more and more men and armour over to Vietnam.
Operation Torch is the right answer. Code for allied landing in North Africa in 1942
Incorrect answers:
Barbarossa - German invasion of Soviet Union
Battle of Stalingrad - one of key battles on Eastern Front resulting in destruction of number of German armies and turning point in the conflict with Soviet Union.
B......... there's not much information to go on