South Korea, US begin military drills

South Korea and the United States kicked off their annual, massive military exercises yesterday as North Korean leader Kim Jong-Un ordered his troops to prepare for a "merciless strike" against the enemy forces.  Participation in the joint exercises -- known as Key Resolve and Foal Eagle -- is similar to last year which involved 300,000 South Korean and around 17,000 US troops, as well as strategic US naval vessels and air force assets.