Complex sentence: The Soviets refused but prepared large amounts of military equipment at airfields for dispatch to Syria and sent Marshall Pavel Kutakhov to Syria to find out what happened to the Syrian SAMs, fearing that NATO might do the same in Eastern Europe.
Split into simpler sentences: The Soviets refused but prepared large amounts of military equipment at airfields for dispatch to Syria. They sent Marshall Pavel Kutakhov to Syria to find out what happened, fearing that NATO might do the same in Eastern Europe.