"We welcome Prime Minister Abe's expression of deep remorse for the suffering caused by Japan during the World War II era, as well as his commitment to uphold past Japanese government statements on history," said National Security Council spokesman Ned Price.
"We also value Prime Minister Abe's assurances of Japan's intent to expand upon its contributions to international peace and prosperity in the years ahead," he said in a statement.
Abe, in a closely-watched speech just ahead of the 70th anniversary of the end of WWII, today expressed deep remorse over Japanese aggression during World War II.
He has been criticised by some for trying to expand the role of Japanese military.
Price, however, said: "For 70 years Japan has demonstrated an abiding commitment to peace, democracy, and the rule of law. This record stands as a model for nations everywhere.