WASHINGTON, Sept 6 (Reuters) - The U.S. military will test launch an intercontinental ballistic missile on Wednesday, the Pentagon said, adding it has notified Russia in advance.

A Pentagon spokesman described the test as routine and said it was meant to demonstrate the readiness of the U.S. military's ICBM forces.

The United States last month carried out a test of a Minuteman III ICBM, which had been delayed to avoid escalating tensions with Beijing during a Chinese show of force near Taiwan.