NATO says it has begun ramping up its airstrikes in the western half of Libya, which is still largely under Moammar Gadhafi's forces, AP reported. The coalition said in a statement sent Saturday that it has destroyed more than 50 military targets in the west this week. NATO says the strikes are aimed at hitting forces loyal to Gadhafi who have been massing in western cities and along major lines of communication. NATO has been striking Libya since March under a mandate to protect civilians.