Complex sentence: Ithor was the home of a special tree whose spores were effective weapons against Yuuzhan Vong Vonduun-crab-armor; unfortunately, a great weapon for the New Republic had been destroyed.
Split into simpler sentences: Ithor was the home of a special tree, whose spores were effective weapons against Yuuzhan Vong Vonduun-crab-armors. Instead, a great weapon for the New Republic had been destroyed.