Complex sentence: The rebels assaulted Kulja on 7 November 1944 and rapidly took over parts of the city, massacring KMT troops, however, the rebels encountered fierce resistance from KMT forces holed up in the power and central police stations and did not take them until the 13th.
Split into simpler sentences: The rebels assaulted Kulja on 7 November 1944 and rapidly took over parts of the city, massacring KMT troops. However, the rebels encountered fierce resistance from KMT forces holed up in the power and central police stations and did not take them until the 13th.