U.S. and allies aim to track North Korean rocket; launch window from Monday

By Jack Kim and Tim Kelly SEOUL/TOKYO (Reuters) - The United States has deployed missile defence systems that will work with the Japanese and South Korean militaries to track a rocket North Korea says it will launch some time over an 18-day period beginning Monday. North Korea has notified U.N. agencies it will launch a rocket carrying what it called an earth observation satellite some time between Feb. 8 and Feb. 25, triggering international opposition from governments that see it as a long-ran