The textbook is based on the requirements of the combat charters of the Ground Forces and other existing manuals and instructions for the preparation, organization and conduct of modern combined arms combat by units. The experience of military operations in Afghanistan and the Chechen Republic, the principles of organizing units of foreign armies are considered. The issues of preparation, organization and conduct of modern combined arms combat by a soldier, squad, platoon are described, the work of the platoon commander, squad for organizing the battle, managing units in battle, the actions of the soldier, squad, platoon in the offensive and defense, on the march, in marching and guard, in intelligence.