Complex sentence: This campaign was ultimately unsuccessful, although the local Timorese paid a high price for the assistance they provided the Australians and it is estimated that between 40,000 and 60,000 Timorese perished during the Japanese occupation.
Split into simpler sentences: This campaign was ultimately unsuccessful, although the local Timorese paid a high price for the assistance they provided the Australians. It is estimated that between 40,000 and 60,000 Timorese perished during the Japanese occupation.