In prior wars, combat units served at the front of combat for a set period of time before being rotated to the rear to rest and refit, and support units were mostly kept in the rear area.

在之前的战争中，士兵在前线呆了一段时间后会被调到后方休息段时间，重新装备。

youdao

By gathering information into a digital view of the battlefield, MIDS provides greater situational awareness in combat for the U.S.Navy, Air Force, Army, Marine Corps, and for U.S. defense partners.

通过收集信息并以数字视野呈现战场，MIDS能为美国海军、空军、陆军、海军陆战队以及美国防务合作伙伴提供增强的态势感知。

youdao

By gathering information into a digital view of the battlefield, MIDS provides greater situational awareness in combat for the U.S. Navy, Air Force, Army, Marine Corps, and for U.S. defense partners.

通过收集信息并以数字视野呈现战场，MIDS能为美国海军、空军、陆军、海军陆战队以及美国防务合作伙伴提供增强的态势感知。

youdao

They withdrew under a security agreement that calls for American combat forces to leave Iraq by the end of two thousand eleven.

VOA: special.2009.08.22

"Speaking for the United States, our civilian commitment will continue long after our combat forces leave.

VOA: standard.2009.12.05

McCain,the Ranking Member of the Senate Armed Services Committee, was asked whether the timeline for withdrawing U.S.combat forces from Iraq within the next year might need to be revised in the wake of the latest attacks.

VOA: standard.2009.10.26

And therefore, we'd been in combat for years and years, and I'm always amazed--and we did and do a good job at it.

NPR: Women in Combat: Rules and Reality

Though Homs has been the site of urban combat for two years, the soldiers -- from the front line to checkpoints -- appeared largely combat-ready.

CNN: Syrian army in Homs is showing strains of war

Phillip Mitchell, of the International Institute for Strategic Studies, estimates that the 7th Armoured Brigade won't be ready for combat for at least six weeks, though British paratroopers and commandos will be ready sooner.

ECONOMIST: Britain sends in the Rats