Nov. 21 (Bloomberg) -- Saudi Arabia said it will join a fleet of NATO warships on an anti-piracy mission, as hijackers bolstered defenses around an oil-laden Saudi tanker captured off the East African coast. The North Atlantic Treaty Organization has four warships off Somalia. India, Malaysia and Russia have sent warships, and a European Union fleet is expected to reach the zone next month. The U.S. coalition in Afghanistan has a task force there, bringing the total of warships in the area to 15, according to French military spokesman Christophe Prazuck. The area is almost twice the size of Alaska. Story here.