Complex sentence: Münnich had given Russia its first campaign against Turkey that had not ended in crushing disaster and dissipated the illusion of Ottoman invincibility; he had further shown that Russia's grenadiers and hussars could defeat twice their number of janissaries and spahis.
Split into simpler sentences: Münnich had given Russia its first campaign against Turkey that had not ended in crushing disaster and dissipated the illusion of Ottoman invincibility. He had further shown that Russia's grenadiers and hussars could defeat twice their number of janissaries and spahis.