Union Square Martial Arts for Kids - Paxibellum Discover Paxibellum's martial arts program for kids in Union Square. Our classes promote discipline confidence and fitness in a fun supportive environment. Visit Now: https://paxibellum.com/about-us/nycs-premier-martial-arts-and-bjj-gym/ #paxibellum #unionsquaremartialartskids #kidsmartialarts #confidencebuilding #childfitness