"Defense Secretary Robert M. Gates spoke to Egyptian Defense Minister Mohamed Hussein Tantawi, said Pentagon spokesman Geoff Morrell, who would not provide details of their conversation. Adm. Michael G. Mullen, the chairman of the Joint Chiefs of Staff, also spoke with Lt. Gen. Sami Hafez Enan, the chief of staff of the Egyptian armed forces. In the 10-minute call, "both men reaffirmed their desire to see the partnership between our two militaries continue," said Capt. John Kirby, Mullen's spokesman. Egypt receives more than $1 billion in U.S. aid annually."