Left-bank Ukraine
In the fall of 1667 Doroshenko, with support of Crimean Tatars, defeated the Polish forces at the Battle of Brailiv (Brailiv) in Podolia. After the battle, Doroshenko's opposition, led by the Kosh Otaman Ivan Sirko and Tatars stopped his further advance against Poles. With the Right-Bank seemingly secured, Doroshenko and his men crossed into Left-bank Ukraine and supported an uprising of Ivan Briukhovetsky against Muscovy.