Player Embed Code: Download Embed Share Military Build-Up on Guam Defense Media Activity - Guam Nov. 13, 2017 | 1:53 New construction is underway on Guam for the relocation of more than 5,000 U.S. Marines from Japan. They're expected to make the move by 2024 as part of an overall restructuring of U.S. forces in the Asia-Pacific region, first announced nearly a dozen years ago. Amy Forsythe reports from Andersen Air Force Base, Guam.