New in 2021: Going to the field may look different for Marines January 12 Marines with India Company, 3rd Battalion, 6th Marine Regiment, 2nd Marine Division, participate in live-fire assaults on range Golf-36 (G-36), Camp Lejeune, North Carolina, Dec. 12, 2020. (Lance Cpl. Jacqueline Parsons/Marine Corps) In 2020 the Marine Corps laid out the initial force design plan for the Corps’ next decade. The smaller, tankless, more mobile force laid out in spring 2020 is still missing a few details the Corps hopes to work out over the next few years, during “phase three” of the force design. The three-year experimental phase will see Marines heading to the field more, spending more time working with the Navy, and having Marines experiment more with nonscripted training events against equal or superiorly equipped opponents.