CHAPTER 6
ORGANIZATION OF GUERRILLA UNITS
I. Unit and Command Structure
Most of the early guerrilla groups in Greece and Yugoslavia were organized on a regional basis, taking as a unit designation the name of their leader or of the area, or of such geographical features as forests or mountains. In time, such leaders as Zervas, Sarafis, Mihailovitch, and Tito arose, and the various groups divided along political lines. As they expanded, it became necessary to form military units.
In Greece the units were organized and designated along the lines of the regular forces of the prewar period, with companies, battalions, regiments, and divisions. In Yugoslavia the odreds (groups) became brigades, above which higher headquarters were formed to exercise control. Since the forces in both countries were still on a militia basis, the Greek and Yugoslav commands also found it expedient to form mobile units, which would not be tied down to any particular region and could be sent where needed. Captured arms, as well as materiel supplied by the Allies, soon permitted the mobile units to take on the semblance of regular troops, with automatic weapons, mortars, antitank guns, and even light field pieces to support their riflemen. The military designations of brigade, division, and corps, however, were no indication of actual strength. For example, ELAS at one time had 10 organizations carried as divisions, but a total strength of only 30,000; the brigades of Tito's Partisans frequently had only a few hundred men.
In the Partisan force, the chain of command went through brigade, division, corps, and area headquarters, and then to Tito's staff, which had a status comparable to that of an army. Tito himself professed to be the commander of the armed forces of the independent state of Yugoslavia.
The Chetnik organization was based on a "brigade" of two combat companies and a replacement company. Three to eight brigades formed a corps, subordinate to an area headquarters responsible to Mihailovitch, at approximately army level. As Yugoslav Minister of Defense, Mihailovitch was a member of the Yugoslav Government-in-Exile and responsible to the Prime Minister and King Peter.
Authority in ELAS extended from company through division, also an area command, to ELAS headquarters, which was comparable to
