Complex sentence: Appointed a Lt. Commander, Barclay worked on further camouflage assignments until July 18,1943, when he was reported missing after the U.S.S. LST 342 he was aboard was torpedoed in the Solomon Islands.
Split into simpler sentences: Appointed a Lt. Commander, Barclay worked on further camouflage assignments until July 18,1943, when he was reported missing. The U.S.S. LST 342 he was aboard was torpedoed in the Solomon Islands.