Līna Čanka was born on November 5, 1893, in a agricultural family of the farm "Mežziles" within the vicinity of the Renda Parish with 4 sisters and 1 brother.[1] At the beginning of World War I, her family went as refugees to Ukraine, but Līna stayed in Riga where with her deceased brother's documents and the nickname "Jānis", she voluntarily joined the Latvian Riflemen.[2] She then enlisted in the 3rd Kurzeme Latvian Rifle Regiment [lv] and participated in all the battles of the regiment on the Riga front. During the war, she'd often repeat the phrase:
I wish you knew how beautiful it is in the positions. The music of the crackling shrapnel and grenades - it cannot be described, it can only be felt, enjoyed . When there is no shooting for a while, everyone walks as if dead, but starts shooting - just like at a concert.[1]
After her true sex was revealed in 1915, she continued to serve within the Pavasaru manor in Sloka and despite being wounded, she remained in the frontlines and continued the battle under continuous enemy fire until she was wounded a second time.[1] In 1916, she participated in all the battles for the defense of Nāves Sala [lv] in the summer and fought in the Christmas Battles at Tīreļpurvs, as a senior paramedic and selflessly continued her service under continuous enemy fire. During her service within Russia, she was awarded the Order of Saint George, III and IV class as well as promoted to the rank of corporal.[3][4][5]
After the departure of the Latvian Riflemen to Russia and the collapse of the front, she remained in Latvia and voluntarily joined the Latvian army in September 1919 and served in the 5th Cēsis Infantry Regiment [lv].[4][5]