If your enemy is dug in in an urban area, you bomb the hell out of it before you send in infantry to clean up. If you don’t use artillery and bombs the defenders will mow down the assault units.
This is how urban war is played out between near peer armies.
Think about this, I’m in a concrete bunker with a machine gun, do you want to charge the bunker and get shot, or do you want to call in an airstrike to destroy the bunker with the machine gun position? I know what I’d do
Or, if you're the IDF, and the bunker is filled with neutral UN Observers monitoring for war crimes, you also send in a laser-guided bunker-busting airstrike. Then you insist it was an "accident" while refusing to cooperate with the subsequent investigations.
Of note, just days before the strike, one of the Observers sent an unencrypted email home to his wife noting that he was observing Israeli war crimes and would be reporting them.
This is how urban war is played out between near peer armies.
Think about this, I’m in a concrete bunker with a machine gun, do you want to charge the bunker and get shot, or do you want to call in an airstrike to destroy the bunker with the machine gun position? I know what I’d do