Complex sentence: In mid- 1992, the brigade was directed to deblockade the besieged city of Dubrovnik, which was successfully concluded and the furtherest south of Croatia completely liberated by the end of the year.
Split into simpler sentences: In mid- 1992, the brigade was directed to deblockade the besieged city of Dubrovnik. The result was that the furthest south region of Croatia completely liberated by the end of the year.