About 10 huge cargo planes an hour - packed with heavy armor, trucks, Humvees and troops - landed at a makeshift northern Iraq airstrip controlled by U.S. troops over the last 24 hours, officials said yesterday. The steady stream of planes included C-17 Globemasters, big enough to carry an Abrams tank, and C-130s. The giant planes hit the airstrip, disgorged their load and were back in the air in 30 minutes, officials said. A few miles away yesterday, coalition war planes pounded Iraqi positions to aid U.S.-backed Kurdish fighters as they seized territory in preparation for an advance by coalition...