 Complete the following phrase:  Alexanders military career began probably during the Cossack uprising of Bohdan Zynoviy Mykhailovych Khmelnytsky. In 1656 he participated in the war with the Swedes, fighting in the battles of Prostki and Filipów. In the years 16571659, together with Polish Hetman Stefan Czarniecki he was dispatched on Western Pomerania and Denmark. Probably commanded the Czarnieckis right wing divisions at the 