“弩炮”行动是指第二次世界大战初期,英国政府制定的夺取、控制或击沉法国舰队的武装行动计划。1940年5月10日,纳粹德国在西线发动全面进攻,很快突破了法军防线,英国远征军不得不撤退回本土。6月7日,当德军突破法军索姆河防线,直逼 “Ballista” refers to the armed action plan developed by the British government in the early days of World War II to seize, control or sink the French fleet. On May 10, 1940, Nazi Germany launched an all-out offensive on the western front and quickly broke through the French defense line. The British Expeditionary Force had to retreat back to its homeland. On June 7, when the Germans broke through the French Somme line of defense, it was almost equal