Builder 2nd Class Dennis VanZuiden’s stepfather, former Iowa Army National Guardsman Larry Damhoff, died in 2010. Every Father’s Day since, VanZuiden has visited his dad’s grave. That wasn’t an option this year. VanZuiden spent Father’s Day in Afghanistan, deployed with Naval Mobile Construction Battalion 15. Instead, his unit arranged to fly Damhoff’s funeral flag above Camp Leatherneck on June 28, Damhoff’s birthday — a family tribute honoring two generations of service. “It was pretty hard. It was a lot harder than I thought it would be,” VanZuiden said in a Defense Department news release. “Watching the flag fly overwhelmed me.”…