A U.S navy marine stands on guard...

A U.S navy marine stands on guard on the deck of the warship Bainbridge guard upon arrival at the port of Mombasa, 500km from the capital Nairobi, April 16, 2009. NATO forces foiled an attack by Somali pirates on a Norwegian tanker then briefly detained seven gunmen after hunting them down under cover of darkness, NATO officials said on Sunday, April 19.

REUTERS/Antony Njuguna