The 1st Siege Artillery Regiment (Regimentul 1 Artilerie Asediu) was formed on 1 March 1915, with its garrison at the Jilava Fort.
In March 1915, the 1st Siege Artillery Regiment (Regimentul 1 Artilerie Asediu) was created and had its primary base of operations at the Jilava Fort, which is relevant to understanding the military's organizational structure during that time period.