sentences:  The 410th entered combat in May 1944 and helped to prepare for the invasion of Normandy by assaulting coastal defenses, airfields, and V-weapon sites in France, and marshalling yards in France and Belgium.It supported the D-Day invasion in June by bombing gun positions and railway choke points.It also assisted ground forces at Caen and St Lo in July and at Brest in August and September by attacking bridges, vehicles, fuel and ammunition dumps, and rail lines.