Spanish Republican Government's Army of the Center 3-16 March 1937

Commanding Officer: General Menat

I Corps: 1st Division:Lt. Col. E.J.Barrio 26th Mixed Brigade: Commandante G.O.Bueno 27th Mixed Brigade: Commandante S.P.Alvarez 28th Mixed Brigade: Commandante M.A.Santos 2nd Division: 29th Mixed Brigade: Lt. Col. E.A.Maraver 30th Mixed Brigade: Commandant M.T.Lacorte Alpin Battlaion G.N.R. Battalion 3rd Division: Lt. Col. E.F.H.Gazatañaga 32nd Mixed Brigade: Commandante N.T.Azcona 33rd Mixed Brigade: Lt. Col. J.G.Morelló 34th Mixed Brigade: Commandante M.S.García 10th Division: Lt. Col. J.M.Galan Rodríguez 3rd Mixed Brigade: Commandante J.Z.Isasi 31st Mixed Brigade: Commandante F.C.Villaroig 35th Mixed Brigade: Commandante N.Nanetti (4 bns)

II Corps: Colonel E.A.Goicoechea 8th Division: Commandante E.C. de la Peña 37th Mixed Brigade: Lt. Col. J.F.Cavada 44th Mixed Brigade: Commandante J.M.E.Mandolell 69th Mixed Brigade: Commandante G.D.Martínez 12th Toledo Machine Gun Battalion Guerrilleros Company 5th Division: Commandante J.P.Capulino Mixed Brigade: Commandante M.P.Martínez Mixed Brigade: Commandante M.T.Lozano Mixed Brigade: Lt. Col. F.G.Palicios 7th Division: Col. A.P.Vaquero 2nd Mixed Brigade: Commandante J.M. de Aragón 40th Mixed Brigade: Lt. Col. A.O.Gutiérrez 68th Mixed Brigade: Commandante E.V.Martínez 6th Division: Lt. Col. C.R.Jiménez 4th Mixed Brigade: Commandante A.L.Fortea 42nd Mixed Brigade: Lt. Col. E.R.Pacheco 43rd Mixed Brigade: Commandante V.G.Marcos

Modesto Group: Commandante J.M.Guilloto 4th Division: Lt. Col. E.B.N. del Prado 41st Mixed Brigade: Commandante J.M.O. Guimiel 36th Mixed Brigade: Commandante J.L. de la Fuente 67th Mixed Brigade: Commandante F.B.Viñes "E" Mixed Brigade: Commandante V.G.González 19th Mixed Brigade: Commandante M.M.Sánchez 21st Mixed Brigade: Lt. Colonel F.G.Palacios

1 III Corps: Lt. Col. R.B.Stholle A Division: General Walter 5th Mixed Brigade: Lt. Col. L.F.Palacios XIV Mixed Brigade: Lt. Col.J. Putz P.U.A.: Commandante J. del Castillo Sánchez B Division: General Gal XI International Brigade: Lt. Col. J. Hans XV International Brigade: Commandante V. Copic 17th Mixed Brigade: Commandante H.C.Manzano 24th Mixed Brigade: Commandante E.G.Ramos 69th Mixed Brigade: Commandante G.D.Martínez 11th Division: Commandante E.L.Forján 1st Mixed Brigade: Commandante R.P.Argüelles (4 bns) 1st (bis) Mixed Brigade: Commandante A.S.Serrano (4 bns) 23rd Mixed Brigade: Commandante J.P.Argelles 66th Mixed Brigade: Commandante J.P.M.Parpar 70th Mixed Brigade: Commandante E.S.Asencio (4 bns)

Independent Divisions: 9th Division: Lt. Col. J.A.Mayora 18th Mixed Brigade: Commandante L.C.Rozas 45th Mixed Brigade: Commandante A.R. de la Iglesia 12th Division: Col. V.L.Seminario 48th Mixed Brigade: Commandante M.C.Rodríguez (4 bns) 49th Mixed Brigade: Lt. Colonel A. de la Macorra Carratalá (4 bns) 50th Mixed Brigade: Commandante E.B.Llacuri (4 bns) 71st Mixed Brigade: Commandante E.B.Funes (4 bns) 72nd Mixed Brigade: Commandante J.V.Oroz (4 bns)

Total 116,913 men, 77,691 rifles, 1,546 automatic weapons, 186 mortars, 138 guns, not including those accompanying or in the general reserve.

Larrazabal, R.S., Historia del Ejercito Popular de la Republica, Editora Nacional, Madrid