Odysseus will repay the hospitality shown by Alcinous is evident in lines 1-7 in book 9; And it is important as when they will survive, will remain friends and allies which is significant in political terms.
Explanation:
Odysseus will repay the hospitality shown by Alcinous which is both a necessary and an important turning point in the time of war which shows the significance of this vow as being the political terminology is upheld.
Odysseus and Alcinous will become friends at the end of the war in case of their survival of both of them. This survival and their friendship will lay down the political alliance to be established as a significant part of repayment of the hospitality.
You didn’t put choices for what we can pick from, but as far as i can see, i would put Aztec Religion!
Explaining: If they feared the Aztec people then i would assume that they also fear their religious practice!
The US had many attempts at compromise with varying levels of sucess before the Civil War. However, when Lincoln was elected president (on the platform of stopping the expansion of slavery), the South lost hope and seceded.
There is always a solution other than war, however, in this case, war had been a looming possibility for quite some time, and compromise probably would've only pushed the war back a year or two.
Hope this helps :)