The scouts can go behind the enemy lines.

侦察兵能够深入敌后。

youdao

Her daring work behind the enemy lines is now legend.

她在敌后的英勇斗争业迹现在已是传奇美谈。

youdao

In all regions behind the enemy lines and in all the war zones, stress should be laid not on particularity, but on identity; to do otherwise would be a gross error.

在一切敌后地区和战争区域，应强调同一性，不应强调特殊性，否则就会是绝大的错误。

youdao

Lee turned his horse toward the enemy lines behind his army.

VOA: special.2009.12.17

He was often hungry but he was not usually worried because he did not give any importance to what happened to himself and he knew from experience how simple it was to move behind the enemy lines in all this country.

NPR: Robert Jordan, Hemingway's Bipartisan Hero

He claims the government erased his military record following the ceasefire to avoid embarrassing questions if anyone was caught behind enemy lines in the tense days after peace was declared.

CNN: THE UNKNOWN SOLDIERS

The exploits are straight out of a Hollywood movie: nighttime parachute drops behind enemy lines before the D-Day invasion in France, shootouts with SS troops, dodging Nazi collaborators, helping hundreds of downed American airmen elude capture.

WSJ: Ex-CIA chief aided WWII hero's Arlington burial