Did Korean War II start last night?

There are two potential regional nuclear wars brewing in the world - North Korea vs South Korea, and India vs Pakistan. We had hoped the unthinkable horror of a true nuclear war would act as deterrents to actual war. It appears we may have been wrong. Now the question hangs in the air - will America abandon her ally at this moment of crisis? Or will we all be spared by a sudden outbreak of sanity in North Korea?

North Korea fired dozens of artillery shells onto a South Korean island on Tuesday, killing one person, setting homes ablaze and triggering an exchange of fire as the South's military went on top alert...The shooting started bushfires at several places in the hills, he told AFP by phone after fleeing the island by ferry for the mainland port of Incheon.
"Frightened villagers rushed to nearby shelters while others were busy running away and crowded the port to escape," Woo said, adding about 1,500-1,700 civilians live on the island.
"When I walked out, the whole village was on fire," another villager was quoted by Yonhap news agency as saying. "I'm at the evacuation site with other villagers and I am scared to death."