Complex sentence: The training center was closed after the defeat of Germany in July 1945; the city of Greenville then took ownership of the property, then leased the site to TEMCO (later L-3 Communications).
Split into simpler sentences: The training center was closed after the defeat of Germany in July 1945. The City of Greenville then took ownership of the property, which leased the site to TEMCO (later L-3 Communications).