North Korean Foreign Minister Ri Yong Ho leaves his hotel in New York on Monday. Ri says President Trump's tweets amount to a declaration of war against North Korea — and that the country can now defend itself under international law.
Jewel Samad/AFP/Getty Images
Passers-by look at the North Korean missile's path over Japan, displayed on a huge screen in Tokyo on Wednesday. Japanese Prime Minister Shinzo Abe said he and President Trump have agreed to increase pressure on Kim Jong Un's regime after it launched a ballistic missile over the Japanese island of Hokkaido.
Toshifumi Kitamura/AFP/Getty Images
Afternoon traffic passes in front of a wall painted with the flags of the U.S. and Guam in the Tumon district on the island of Guam on Friday. The island has become a talking point in the rhetoric coming from President Trump and North Korea.
Virgilio Valencia/AFP/Getty Images
South Korean soldiers in Seoul walk by a TV news program showing a file image of a missile being test-launched. North Korea on Tuesday test-launched another ballistic missile in the direction of Japan, U.S. and South Korean officials said.
The North Korean flag flies above the country's embassy in Beijing last month. China is the North's most important trading partner and ally, but lately Beijing has been placing pressure on Pyongyang over the North's nuclear and missile programs.
North Korean leader Kim Jong Un attends the combined fire demonstration of the services of the Korean People's Army in celebration of its 85th founding anniversary in a photo released on April 26.
KCNA via KNS /AFP/Getty Images
An official photograph dated April 15 and posted by the Navy shows the aircraft carrier USS Carl Vinson in an Indonesian strait thousands of miles south of North Korea.
MC2 Sean M. Castellano/U.S. Navy