SEOUL, July 28 (UPI) -- The joint U.S.-South Korea military drills ended Wednesday with South Korean officials saying the exercise sent a message of deterrence to North Korea.
About 20 ships and submarines, 200 aircraft and 8,000 military personnel participated in the four-day "Invincible Spirit" exercises in the East Sea as a demonstration of unity and force against North Korea in reaction to the sinking of a South Korean warship in March, South Korean's Yonhap news agency reported.