1.   Three other U.S. warships have refueled there since last May, Clark said.

2.   They protesters were demanding the government reject U.S. requests to allow its warships to refuel and warehouse weapons and supplies in the Philippines.

3.   Yemen has supported the U.S.-led campaign on terrorism, offering to let U.S. warships refuel in Aden.

4.   Yemen has supported the U.S.-led war on terrorism, offering to let U.S. warships refuel in Aden.