SEOUL (Reuters) — South Korea’s military said it will hold a three-day joint exercise with the United States and Japan starting on Wednesday, featuring fighter jets and marine patrol aircraft as well as the U.S. nuclear-powered aircraft carrier USS George Washington.

The “Freedom Edge” exercise is a response to what the South Korean military said were threats from North Korea, which recently conducted an intercontinental ballistic missile test, drawing condemnation from Seoul, Tokyo and Washington.