It does not cost any less to base U.S. troops in the United States than it does to base them in Poland or Estonia. To the degree that there is strain on the military, it is because it is NOT LARGE ENOUGH. The number of U.S. combat Brigades should be doubled. That takes more money for equipment, training and recruiting. Expand the size of the force, and you reduce the burden on the individual soldier. But that takes a lot more money than is being spent right now!
Foreign deployment is costly....and should only be done when absolutely necessary...I fail to see the need to keep 2000 men and women on a base in Syria.....and if you ask me....Poland and Estonia too...
There are many war scenarios that cost far more than basing troops. Proper troop deployment in the right areas deters aggression and prevents war. We don't want to go back to Isolationist America because that resulted in World War I and World War II. The cost of those two wars was far too much. That's why the United States has maintained a forward presence throughout the world since 1945. Peacetime defense spending, deployments, and regional wars are costly, but they are not nearly as costly as World War, resource depletion, or global economic depression due to conflict.