[mschuster91]

Israel and the US have shown in Iran you need to dig extremely deep, otherwise you stand no chance against modern bombs.

[batshit_beaver]

But carrying bunker busters via drones is a lot more expensive than hand grenades.

[tehjoker]

Does no one remember how the resistance in Gaza held out to this day via their highly sophisticated tunnel system that the IDF was so terrified to enter they tried bombing it in a raster pattern with 2000 lb bombs to virtually no effect except on the aboveground civilians the bombs ran through?

https://www.972mag.com/tunnels-hamas-lethal-gas-bombs-gaza/