From Hollywood to War Zones

Robin Williams, Kid Rock and other celebs perform for American troops.

From Hollywood to War Zones

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The chairman of the Joint Chiefs of Staff, Admiral Michael Mullen takes a spontaneous walk through a couple of blocks in Ramadi, where the security situation has markedly improved. The reach of the USO's holiday tour is made possible by the support of the chairman. (Arash Ghadishah/ABC News)
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