| Unit Name: | 4th Army Brigade |
| Native Name: | 4. бригада Kопнене војске |
| Branch: | Serbian Army |
| Dates: | 2007–present |
| Command Structure: | Serbian Armed Forces |
| Specialization: | Mechanized infantry Armour |
| Current Commander: | Brigadier General Slobodan Stopa |
| Garrison: | Vranje |
| Anniversaries: | 31 January |
The 4th Army Brigade (Serbian: 4. бригада Копнене војске|4. brigada Kopnene vojske) is a mixed (mechanized infantry and armoured) brigade of the Serbian Army.
The brigade was formed on 30 June 2007 from the former Army units located in southern Serbia: the 78th Motorized Brigade and parts of the 549th Motorized Brigade and the 52nd Mixed Artillery Brigade.[1]
Brigade is concentrated in southern Serbia, mainly in Pčinja. Most units are based in Vranje, including the command of the brigade, while other units are based in Bujanovac and Leskovac. It consists of mechanized infantry, armoured, artillery, air defence artillery, engineer, signal and logistics units.
The 4th Army Brigade continues traditions of the 1st Infantry Regiment "Prince Miloš the Great". The 1st Infantry Regiment "Prince Miloš the Great" was formed in 1897 and has existed until 1941 i.e. after the German attack on Yugoslavia and country's subsequent defeat. Regiment fought in five wars: First Balkan War, Second Balkan War, World War I, the Allied Intervention in Russian Civil War and World War II.[2]
The day of the brigade is celebrated on January 31. On that day in 1878, Vranje was liberated from Ottoman occupation, and on that date in 1897 the 1st Infantry Regiment "Prince Miloš the Great" was formed.
The unit's slava or its patron saint is Saint Athanasius.