Genealogy / Pawloski - Polish military genealogy information needed [4]

Hi, i am trying to find out more information regarding the military picture that I have attached. I'd like to know what year, war, military service, etc.

It says it is my great great grandfather, Wincenty Pawloski. All I know is he was born in Poland in 1862 and he immigrated to New Castle Pennsylvania around the late 1890s. I appreciate any information you can provide.

Jennifer