The Persian forces were established around certain districts, instead of one single force. Each district (like state forces) furnished battalions and each of the provinces had several battalions. Each district depending on the tribal grouping furnished one or sometimes two battalions usually under their own chiefs. The strength of battalions was from 600 to 800. They had artillery batteries whose strength ranged from four to eight guns. The irregular troops amounted to about 50,000 in each district, with ranks composed of tribal horsemen and an uncertain number of footmen, all poorly armed. It was not uncommon of the chiefs, who controlled the battalions, to change sides. Some of these forces were Qashqai Tribesmen, Tangistani Tribesmen, Laristani Tribesmen, and Khamseh tribesmen. The Persian central government also had the Persian Central Government Gendarmerie, which had Swedish officers and consisted of about 6,000 troops. Only 2,000 of the 6,000 were mounted. They were in six regiments, each of nine battalions, and their armament included Mauser rifles, twelve machine guns, and four mountain guns. The Persian forces were dispersed at Tehran, Kazvin (Ghazvin), and Hamadan with the objective of keeping the country's main roads, which covered an estimated distance of 930 miles, under Persian control.