N Korea at crossroadsKim Jong Un's fury stems from his blaming Moon for Hanoi debacle
Lacking bargaining chips with US, North Korea turns aggressive toward South
After blowing up a joint liaison office with Seoul on June 16, Pyongyang then directed profanity at the South Korean president. (Source photos by Reuters)
YOSUKE ONCHI, Nikkei staff writer
SEOUL -- The tensions that are ratcheting up on the Korean Peninsula are traceable to South Korean President Moon Jae-in's advice to North Korean leader Kim Jong Un at a meeting two years ago that left Kim underprepared for a summit with U.S. President Donald Trump.