Spc. Anthony Melendez and Pvt. Chris Fernandez watch as Staff Sgt. Alden Camaya, with the TF 9th CERFP search and etraction team, uses an electric chipper while training on how to breach a confined space during the Joint Patriot Exercise 2011 in Volk Field CRTC, WI. This training was in preparation for a scenario that was conducted two days later.