Why do armies take prisoners? Couldn't they find other ways of
handling the situation? What might
be costs of some of these
methods?

Leverage

Explanation:

It's to hold these men over the other country's head. "We have your soldiers, so what are you gonna do about it?" It costs a lot. Feeding and gaurding the soldiers is very hard.

the alfred thayer mahan award for literary achievement is awarded each year by the navy league of the united states. the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation. presented since 1957, "this award for literary achievement is awarded to a u.s. navy officer, u.s. marine corps officer, enlisted service member, or civilian who has made a notable literary contribution that has advanced the knowledge of the importance of sea power in the united states."[1]