On September 4, 1982, during the Israeli invasion of Lebanon, the Bahmdoun abduction operation was a military operation carried out by Fatah, the main constituent organization of the PLO. A Palestinian 4-man squad infiltrated the IDF-held mountainous area near north Bhamdoun, in central Lebanon and attack and IDF observation point, capturing the entire 8- men IDF soldiers from the newly formed Nahal Brigade unit. Four of the IDF soldiers were on active duty, while the remaining four were resting or sleeping. They were all captured without firing a single bullet, according to Wikipedia.
This provided the Palestinian side with plenty of leverage in two POW exchanges with Israel which free about 7000 Palestinian and Lebanese prisoners held at Ansar prison camp. A four-man squad of Fatah fighter from the elite Al-Jarmaq battalion, led by commander Eisa Hajjo, were selected for the mission.