No, not just rocks. Actual missiles. Here's proof, not just a meme: https://www.youtube.com/watch?v=0zZucE9bEAY

Turns out, when you launch missiles into a sovereign country occupying land they're entitled to, they will retaliate.

I never understood the argument -- In the event of a land dispute, the response is not diplomacy, but rather is to launch rockets against the nation through an informal war? Ha, good one!