 Complete the following phrase:  In the first quarter of 2007, United States Secretary of Defense Robert M. Gates announced changes to the Guard deployment policy aimed at shorter and more predictable deployments for National Guard troops. Gates said his goal is for Guard members to serve a one-year deployment no more than every five years... Gates is imposing a one-year limit to the length of deployment for National Guard Soldiers, effective immediately. Prior to this time, Guard troops deployed for a standard one-year deployment to Iraq or 