Complex sentence: Despite the PAVN's delay for that battle, Lair's prediction of Lima Site 85's fall was prophetic; the radar site was captured by Vietnamese sappers on 11 March 1968 even though Hmong guerrillas and Thai mercenaries remained on the mountain.
Split into simpler sentences: Despite the PAVN's delay of the battle, Lair's prediction of Lima Site 85's fall was prophetic. The radar site was captured by Vietnamese sappers on 11 March 1968 even though Hmong guerrillas and Thai mercenaries remained on the mountain.