Myron Tarnavsky

He then served for one year in the Austrian military and due to his good performance was given the opportunity to pursue officer training in Lviv and, later, Vienna.

In 1916, Tarnavsky obtained the rank of major in the Austro-Hungarian army and became the commander of the Ukrainian Sich Riflemen.

In 1918 he was promoted to the rank of lieutenant colonel and given command of the 16th infantry regiment, then stationed in central Ukraine.

At the end of 1918, Austria-Hungary collapsed and a western Ukrainian state was declared in the formerly Austrian-controlled territory of Galicia.

Tarnavsky joined the Ukrainian Galician Army in February 1919, and obtained the rank of colonel.