SEOUL
(Reuters) - North Korea said on Sunday it will bolster its atomic arsenal and was no longer bound by the cease fire that ended the Korean War due to joint U.S.-South Korean military drills, which start this week.

The comments come just days after a senior diplomat from China, the destitute North's biggest benefactor, said Beijing wants stalled international talks aimed at ending North Korea's
nuclear arms activities to restart before July.

The United States, which fought on behalf of the South during the war, has about 28,000 troops in the country to support its 670,000 soldiers.
North Korea warns U.S. and South of nuclear build-up | World | Reuters