How do real life armies clear cities?

[serg3d]

Israel doctrine for urban combat rely on tanks heavily. I remeber I have read that infantry should provide 20 meters "safe area" around tank.

In the second Chechen war, most works seems was done by rekon groups and artillery. Rekons located the enemy and called artillery fire. After that line infantry occupied area with little resistance. Dyring Grozyi assault (second chechen war) city was encircled and TOS-1 ("Buratino") FAE (thermobaric) missiles launchers were used en masse on it. Remnants of unburned explosive in the air from fuel-air rokets caused rumors about chemical weapon.