behind enemy lines

idiom

: in an area controlled by the enemy
a secret mission behind enemy lines

Examples of behind enemy lines in a Sentence

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During World War II, Critelli spent 151 days in combat, often flying behind enemy lines to deliver supplies to isolated American troops. Dave Quinn, PEOPLE, 31 Dec. 2025 With three German planes on his tail, Quentin was shot and plunged out of control; his Nieuport 28 went down behind enemy lines in the village of Chaméry. Fiona Donovan, Vanity Fair, 30 Dec. 2025 Rumors spread about the Malmedy and Stavelot murders, paratroopers behind enemy lines, and German soldiers impersonating Americans to seize bridges. Kapil Kajal, Interesting Engineering, 25 Dec. 2025 From deep behind enemy lines, a hidden chapter of American military history is uncovered, prompting the question of whether reckoning with the past can bring peace to those who lived it. Jason P. Frank, Vulture, 10 Dec. 2025 See All Example Sentences for behind enemy lines

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“Behind enemy lines.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/behind%20enemy%20lines. Accessed 11 Jan. 2026.

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