Prime Minister Junichiro Koizumi and U.S. President George W. Bush will hold their first summit on June 30 at Camp David, Md., Chief Cabinet Secretary Yasuo Fukuda announced Tuesday.

It will be Koizumi's first trip abroad since being swept into power in late April. The two leaders, who have both stressed the significance of the Japanese-U.S. alliance, are expected to reaffirm the need to strengthen bilateral security ties.

Koizumi will leave June 29 and is expected to return July 1, Fukuda said.