Controlling the mountains gives you a huge military advantage. You can defend much more easily if you control mountains. You can attack into non-mountainous ter

Controlling the mountains gives you a huge military advantage. You can defend much more easily if you control mountains. You can attack into non-mountainous terrain much more easily. You do not want to be on a plain exchanging artillery fire with troops dug into mountains. Given the recent conflicts between India and China (like the 1962 war) only a fool would give up such terrain. I wonder if armed flying drones will change that. Could a very fast, agile, and silent autonomous drone engage targets in mountains as easily as the do in other terrains?