Complex sentence: They are not to be confused with the Neo-Nazi White Patriot Party.They formed after a split with the Young Patriots Organization which was a Urban Appalachian street gang in the Uptown neighborhood of Chicago that became politicized after working with the Young Lords and the Black Panther Party.
Split into simpler sentences: They are not to be confused with the Neo-Nazi White Patriot Party. The YPO was an urban Appalachian street gang in the Uptown neighborhood of Chicago that became politicized after working with the Young Lords and the Black Panther Party.