Ukrainian tactics are also unchanged. Formations grimly defend blasted settlements, using basements as shelters, and do their best to repulse Russian attacks with drones, artillery, and mines. One weak unit can compromise a defensive line. The temptation to retreat is always present. Once Russian troops secure a toehold in a settlement, Ukrainian withdrawal is not long in coming. A war cannot be won defensively ceding ground. Retreat can become rout. Ukrainians must find the will, belief and troops to attack.