Complex sentence: He took office just after the bombing of Pearl Harbor ushered the United States into World War II. Wyatt made civil defense a priority in his city and also initiated Louisville's planning and zoning commission.
Split into simpler sentences: He took office just after the bombing of Pearl Harbor ushered the United States into World War II. Wyatt made civil defense a priority and was involved with a great deal of planning related to that. Wyatt also initiated Louisville's planning and zoning commission.