Complex sentence: A majority of the prisoners of war were captured from the ambush of the 507th Maintenance Company when a convoy of vehicles got lost and entered the Iraqi-held town of Nasiriyah on March 23,2003.
Split into simpler sentences: A majority of the prisoners of war were captured from the ambush of the 507th Maintenance Company. This is when a convoy of vehicles got lost and entered the Iraqi-held town of Nasiriyah on March 23,2003.