Complex sentence: After the 1967 Six-Day War, Israeli authorities expanded the municipality to include the Old City and beyond, and quickly tore down the barricades that had lined Mamilla's 19-year border and restored the connections between the formerly-divided sectors.
Split into simpler sentences: After the 1967 Six-Day War, Israeli authorities expanded the municipality to include the Old City and beyond. They tore down the barricades that had lined Mamilla's 19-year border and restored the connections between the formerly-divided sectors.