"In recent years, we have responded to foreign threats largely by seeking short-term military solutions at the last minute. But how long can we keep this up? Though we are the richest nation on earth, there’s simply no way we can afford (or muster the troops) to intervene in the dozens of countries where emerging threats lurk particularly when each intervention these days can cost more than $100 billion and require more than 100,000 troops. (Lines 216-223). Lines 216-223: What evidence does Diamond cite about U. S. military operations today? What conclusion can you draw based on this evidence? Please use 5 or more sentences.