Kennedy most likely uses the clause "beachhead of cooperation may push back the Jungle of suspicion," to convey the following Idea.
Peace will be preserved by pushing back against enemies.
Cooperation is the first step in lessening misunderstanding between adversarial nations.
Troops that land on the beach will overcome enemies hiding in the jungle.
Suspicion is likely to choke the efforts of any cooperation,

i dont know what you want me to answer

the mood is annoyed. they wish sandy was there do to the job right and since they dont like they way it came out now they are annoyed.

it means that people are present over there who cares for us who loves us and we are never alone there is always a supporting hands behind us so never lose your hope and confidently move ahead to get success in your life.if you make mistakes there are people to make it correct

c -invasion by the moroccans.