Embarrassing losses are making Russian forces very cautious around one of Putin's most prized...

A series of incidents over the past two weeks have rocked military outposts on the Russian-occupied Crimean Peninsula.

On August 9, there were several large explosions at the Saky air base in western Crimea, about 130 miles south of the war's frontline.

The airbase primarily hosted aviation forces of the Russian Black Sea Fleet, which is headquartered in nearby Sevastopol, and the explosions destroyed or severely damaged at least eight Russian aircraft.

At the time, Russia claimed the explosions were caused by an accident. However, evidence suggests that they were the result of a Ukrainian attack.