North Korea launched two ballistic missiles Wednesday night as part of a tactical nuclear strike drill in response to the deployment of U.S. strategic bombers to the Korean Peninsula during an exercise with South Korea, the country's state media reported.The official Korean Central News Agency said Thursday a missile unit of the Korean People's Army "fired two tactical ballistic missiles northeastward" and "correctly carried out its nuclear strike mission."North Korea slammed the U.S.-South Korean exercise as a "serious threat" and tantamount to plans for a pre-emptive nuclear strike by the…READ FULL ARTICLE