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Israel-Gaza Megathread #1

This is a megathread for any posts on the conflict between (so far, and so far as I know) Hamas and the Israeli government, as well as related geopolitics. Culture War thread rules apply.

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What's a good anti-tunnel strategy for the Israelis? A few things immediately come to mind:

  1. Blowing them up / collapsing them
  2. Flooding with water
  3. Sealing / flooding with concrete & rubble
  4. Attacking clean air with smoke / toxins
  5. Occupation / patrol / drones / auto turrets

I think the tunnels are the main infrastructure advantage for Hamas, and Israel will need to confront them directly somehow.

Surely the greatest challenge is finding them

Airborne ground penetrating radar.

Not as easy as it sounds, unfortunately. Effective range is rather limited; the last GPR I worked on was humvee-mounted. Finding a steel can 6 inches under the ground might be easier than a rough tunnel.

I thought LIDAR was good at finding underground structures, even in dense urban build-up. Am I imagining this?

Yes, I imagined that. I am big dumb.

I don't see how lasers could penetrate the ground.

You're not using enough power.