The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
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Sean Moir is a freelance writer from Valley Forge, Pennsylvania.
One tangible effect of all of our recent wars has been a marked proliferation of U.S. military bases around the world. Since the end of the Cold War, the number of countries that host American bases has increased by almost one third, to over 60.
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