The United States on Tuesday vowed to ensure a "steady-state" military presence in Japan's southern island prefecture of Okinawa, as it withdraws its F-15 fighter jets based at the U.S. Kadena Air Base and replaces them with a "rotational" force.The move comes at a time when China is becoming increasingly assertive in the Indo-Pacific, including toward Taiwan. Four key Republican lawmakers warned in a letter to the Pentagon that the development could send the "wrong signal" to both Beijing as well as U.S. allies in the region."We are concerned with reporting that indicates that there will b…READ FULL ARTICLE