Complex sentence: The standoff continues for 10 days until, on 2 March, the soldiers suddenly announce that their side won the revolution and let the pilot go in exchange for him giving one of them a ride to Lima.
Split into simpler sentences: The standoff continues for 10 days until, on 2 March, the soldiers announce that their side won the revolution. They let the pilot go in exchange for him giving one of them a ride to Lima.