Complex sentence: Up to seven Russian Su-25s were lost, one to hostile fire: on 4 October 1999, a Su-25 was shot down by a MANPADS during a reconnaissance mission over the village of Tolstoy-Yurt killing its pilot.
Split into simpler sentences: Up to seven Russian Su-25s were lost, one to hostile fire. On 4 October 1999, a Su-25 was shot down by a MANPADS during a reconnaissance mission over the village of Tolstoy-Yurt killing its pilot.