David Rudd (born March 13, 1959) is an American cinematographer. Won 3 Prime Time Emmy Awards. Nominated for 9 Emmy Awards and 1 MTV Award for Cinematography. (wikipedia)
Some people are very family-oriented and reserve units are in their communities, whereas regular army bases are often in remote or far-away parts of the country. And then there's the whole notion of deploying overseas, which can be unattractive.
Some first-generation immigrants come from countries where there's a deep suspicion of the military and police.
They're going to have a hard time meeting that goal.