Gadhafi military hurt, but prospect of stalemate looms, official says

After weeks of U.S. and NATO bombardment, about one-third of Moammar Gadhafi's ground armor has been destroyed, as well as most of the fixed air defense sites and aircraft, but a stalemate between government and rebel forces is emerging and could last for some time, according to a senior U.S. official with direct knowledge of the latest military assessments.

The official agreed to speak Monday only on background because of the sensitive nature of the information.

The official said the latest U.S. and NATO view is that both sides essentially remain in their fixed positions -- the rebels near Ajdabiya and the pro-government forces near al-Brega.