Conflict in the 21st Century differs markedly from the way the United States thought about and prepared for war and defense during most of the 20th Century. Armed Groups remain key actors, having... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.