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Alcott act during the First World War (1915 - 1918) and was formed on September 11, 1915 in Svishtov named 58 Infantry Regiment 33 Reserve Infantry Svishtov and 34 infantry regiments Trojan, it is subject to 9th Infantry Division Pleven.
58th Infantry Regiment in the composition of the first brigade of the Third Infantry Division, commanded by Major General Nicholas Ribarov participated in Lerinska operation in August 1916
In October and November 1916. Regiment under the command of Colonel Toromanov involved in fighting in the first bend of the Black River.
In the period 1 January-16 March 1917 the commander of the 58th Infantry Regiment was Peter Midilev.
58th Infantry Regiment, along with the 17 and 33's and 34 Infantry Regiments and Ninth artillery regiment participated in the battles of Doiran. On June 24, 1918 was shot down by artillery fire observant English airplane, which falls into the barbed wire on the main position of the 58 Regiment of the heights north of Lake Doiran (September 1918) features levoflangovata Battalion Major Getchev. On a small hill, 3-4 km from Doiran, is regimental cemetery died in the offensive in 1915, soldiers from the 58th Infantry Regiment was buried there Colonel Costa Kavarnaliev and in 1918 here Ninth Infantry Division Pleven builds in honor of an impressive monument, which was destroyed in 1945
Tsapari the village near the town of Bitola were buried 207 soldiers from 58 Regiment, and of the Third Infantry Regiment Bdinski, Fifteenth Infantry Regiment Lom, Sixteenth Infantry Regiment Lovchanski, Fifty-first Infantry Regiment, Fifty-fifth Infantry Regiment, Fifty-eighth Infantry Pleven Regiment, First mountain artillery regiment, twelve artillery regiment nineteenth artillery Regiment and 6th battalion pioneers. Marble monuments over the graves of seven officers in the courtyard of the church "St. George" (one of them is a lieutenant Vladimir Puiskiuliev of Svishtov 2nd Company 58 Infantry Regiment) were the only other officer Bulgarian monuments in today's Republic of Macedonia. In 1970 soldiers crosses and one of modest monuments of soldiers' cemetery has been removed with an excavator, but the graves remain intact. The cemetery was renovated in 2006 with the support of President Georgi Parvanov and the Ambassador of the Republic of Bulgaria in Macedonia General Miho Mihov.
In October 1918 the regiment was demobilized and disbanded by personnel of the regiment returned 33 Svishtov Infantry and 34th Infantry regiments Trojan