From the most recent fizzled flashpoint in November 2010.

It is once again the most wonderful time of the year:

The US and South Korea have begun a joint military drill to improve combat readiness on the Korean peninsula.  The annual Ulchi Freedom Guardian exercise brings together 530,000 forces in Korea and abroad, using computer programmes to simulate war situations.  North Korea has reacted furiously to the exercises, which run for 10 days.

For the uninitiated, this happens every year in August or September and has for decades, although the name of the exercise has changed.  Every year, South Korea and the United States perform large-scale exercises.  Every year, North Korea responds like a seven-year-old would.  Is this year any different, or is there something else here?