Evidently not the people tasked with guarding that Russian air base 
Which is why we are seeing the style in which they are being used is evolving.
Russia undoubtedly thought those planes were safe, and I’m sure $1000 drones hidden In shipping containers would be the way those planes are destroyed was on the bottom of their list.
Mossad pulled off a similar stunt in Iran.
A similar example was in WW2. After the British aircraft successfully crippled the Italian fleet at Taranto, Churchill doubled down on old-world naval power, sending HMS Prince of Wales and Repulse to defend Singapore.
It backfired when Japanese bombers found them, torpedoed them, and sent both to the bottom, which completely changed the game.
The ships couldn’t outmanoeuvre the threat, and the British Navy quickly pulled back. Not long after, Singapore fell.
A classic example of how these massive, costly battleships were brought down by lightweight planes with cheap torpedoes.
(20min delay)