SEOUL, South Korea (AP) — President Donald Trump has given his "blessing" for North and South Korea to discuss the end of the Korean War amid a diplomatic push to end the North Korean nuclear standoff. One problem: There can be no real talks without the involvement of the other countries that fought the 1950-53 war, and especially the United States.

The reason is that South Korea wasn't a direct signatory to the armistice that stopped the fighting but left the Korean Peninsula still technically in a state of war.

There's widespread interest in what South Korean President Moon Jae-in and N...