Your post is the first I've ever seen that so clearly explains why foreign military support exists. Other than maintaining stability and balance of power, there are a lot of reasons for these programs. The protectionists think we can just pull up a wall around America and hope the World doesn't explode. What do they say about nature and vacumns?
The U.S. has been trying to keep the Planet on an even keel and should continue trying (although not all our actions have been prudent or warranted).
Thank you.