Obama confronts nuke threat on N. Korea front line

ANNE GEARAN BEN FELLER Associated Press Published:

CAMP BONIFAS, South Korea (AP) -- President Barack Obama is making his first visit to the world's most militarized border, touring a military outpost just outside the surreal Demilitarized Zone separating North and South Korea.

Later he will enter the DMZ, to greet U.S. troops stationed just 100 yards from the demarcation line.

Obama arrived in South Korea on Sunday morning, local time, and made the DMZ his first order of business. He's invoking Cold War symbolism in an unmistakable show of force to North Korea and its new leader during a diplomatic standoff with the nuclear-armed North.

The U.S. is threatening to cancel planned food aid to the North over its announcement that it will launch a long-range rocket next month.