2. what is the importance of alliances to Survival?

 Alliances exist to advance their members' collective interests by combining their capabilities—which can be industrial and financial as well as military—to achieve military and political success.

Explanation:

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.  

the eye wink at the hand; yet let that be / which the eye fears, when it is done, to see.