The troops will only engage in a ground battle when all the odds are in their favour.

该部队只会在完全可能取胜的情况下进行一场地面战斗。

《柯林斯英汉双解大词典》

The au mission has an authorized force of 8, 000 but to date only 2, 600 troops from Uganda and Burundi have been deployed, and the mission has had little success in stemming the conflict.

非洲联盟维和部队获得的授权是维持8000人的兵力，但是到目前为止只部署了来自乌干达和布隆迪的2600人，而且维和部队在制止冲突方面收效甚微。

youdao

Armenia is the only country bordering Turkey, a NATO member, in which the Russians have troops and a base.

亚美尼亚是与土耳其这个北约成员接壤的唯一一个驻有俄军并建有军事基地的国家。

youdao

He says Ugandan troops in Somalia have been involved only in defensive duties.

VOA: special.2010.07.17

That will,by necessity, need more troops, not only for the training, but for the mentoring in the field.

VOA: standard.2009.09.29

Britain has promised to send an additional 500 troops to Afghanistan, bringing its force total to 9,500,second only to the United States.

VOA: standard.2009.11.17

But Kibumba itself was deserted - not a civilian could be seen in the valley, only troops moving between positions.

BBC: Congo exodus as terror spreads

But he said only combat troops would be expected to be withdrawn at that time, with a continued presence likely for training.

BBC: Afghanistan aid spending boost expected to be announced

He said the reinforcements, which would increase overall UK numbers to 9, 500, would happen only if troops had the equipment and training necessary to perform the tasks asked of them.

BBC: UK sends 500 more to Afghanistan