President Obama continues his visit to Japan with a state dinner at the Imperial Palace on today's schedule.
Earlier today, the President reassured Japanese Prime Minister Shinzo Abe that the U.S. continues to value its historic ties to the Asia-Pacific region.
The President called North Korea the biggest threat to the region's security.
However, he hopes pressure from Japan, South Korea and China can help open up the isolated country.
He added the United States will continue to stand behind its allies in territorial disputes with China, but does not feel that has to include the use of military force.
He urged China and Japan to use diplomatic means to settle their disputes.