WASHINGTON (Kyodo) Japan is likely to participate in the United States' review of its strategy in Afghanistan, sources close to Japanese-U.S. relations said Saturday.

The U.S. asked for Japan's participation when U.S. Secretary of State Hillary Clinton met Foreign Minister Hirofumi Nakasone in Tokyo on Tuesday, and Tokyo is beginning to discuss the request in a forward-looking manner as part of global efforts to stabilize the war-torn country, the sources said.

U.S. President Barack Obama and Prime Minister Taro Aso are expected to take up the matter during a summit planned Tuesday in Washington, they said.