The United States and South Korea on Saturday started joint naval exercises that will involve three U.S. aircraft carriers in what military officials describe as a clear warning to North Korea. The four-day drills that began in waters off South Korea’s eastern coast come as President Donald Trump continues a visit to Asia that has been dominated by discussions over the North Korean nuclear threat. The battle groups of the USS Ronald Reagan, the Theodore Roosevelt and the Nimitz will successively enter the exercise

area during the drills that run until Tuesday, South Korea’s Joint Chiefs of Staff said. The three carriers will be likely together in the drills around Monday, according to a South Korean military official, who didn’t want to be named, citing office rules. The exercises will also involve 11 U.S. Aegis ships and seven South Korean naval vessels, including two Aegis ships. The Aegis technology refers to missile tracking and guidance.  READ MORE