The Russians initially raised two Polish Lancer Squadrons in 1914 which were disbanded in 1915. Later in 1917 the Russians renewed their efforts to raise ‘Polish’ units and formed a Polish Infantry Division with an attached Lancer Regiment. These troops wore Russian style uniforms for the Infantry and Artillery. In the first Lancer units they wore khaki tunics and blue pants.

The French raised Polish units in 1917. Many were trained in Canada. Some would be assigned the the Russian Expeditionary Force which served in France. They wore a French uniform and helmet. It was Horizon Blue (blue-gray). All units had a white eagle on the shoulder patches. Units were identified by numbers on collar patches. Infantry units had their number in Dark green on a blue-gray patch. Cavalry numbers were white on a purple patch. Artillery numbers were light-blue on red patches.

Most of the uniform data on Polish units in the Austrian Army can be found in a source on the Austrian army. Here is some basic data on those uniforms. Initially they were pike grey but later, as the rest of the army changed, they changed to a field grey color. The lancers wore a Polish style square top kepi, They had colored collar patches which were green for infantry, crimson for the 1st Lancer Rgt and amaranth for the 2nd Lancer Rgt, and black for artillery.

World War I Unique and Forgotten Units and Their Uniforms

Introduction
Portuguese: Flanders/Africa
Russian Expeditionary Force to France
Greek Forces on the Salonica Front
Albania and the Albanian Legion
The Three Czech Legions
Polish Legions in Russia and France
Canadian New Foundland Regiment
Singapore Mutiny 1915
British Operation in Somaliland
Pershing in Mexico: Battle of Carrizal
Persia and the Cossack Brigade
Ceylon Planters Rifle Corps
Italian Eritean Askaris
South African Revolt and Commonwealth Units