Since this is during the period of the Soviet Union and communism, Kennedy is asking the people to come together and defend freedom.
She is Unfeeling because Un- meaning not and feeling of course means to sense by touch or how one is with emotions and as her aunt is rude making her unfeeling usually when you have a kid your caring and your nice and if it were in Jane's Point of View she would see her aunt as rude and unkindly as well as unfeeling she doesn't care for her.
b. groaned
This is personification of the branch, because branches can't groan.
The first poem presents a man who has shot an arrow and is clueless as to where it has gone, and is in deep distraught when he finds his arrow has pierced his friends heart and he is now dead, the second presents a man who is in an argument with his friend and fears of all that might of happened to him or the friendship, but returns to his friend in rejoice that he is still alive and did not die in a fight with his friend.
Hope this helped!! :D