Yokota's ORE Published Nov. 24, 2010 By Airman 1st Class Ryan T. Lis 374th Airlift Wing Public Affairs YOKOTA AIR BASE, Japan -- A learned skill often becomes less effective over time unless it is regularly put into practice, that's why Yokota Air Base has quarterly Operational Readiness Exercises to practice responding to a number of different contingencies. Airman First Class Ryan Lis talked to Wing chief of Exercises, Maj Philip Bartoo, to find out how Yokota's Airmen stay sharp.