Sgt. Craig Pusley, a Marine veteran of Iraq and Afghanistan, took up self-imposed duty in front of a central California elementary school in the wake of the Connecticut shooting. "When I enlisted, I swore to defend this country from all enemies, foreign and domestic," Sgt. Pusley said. "I just want to be sure all these kids go home safe for Christmas. "Hughson Elementary School Principal Laura Fong said Sgt. Pusley stood all day Wednesday in fatigues in front of the flag pole at the school just southeast of Modesto. He was not armed. Pusley, who served two tours in Iraq and one in Afghanistan before leaving active duty last year, told the Modesto Bee that he decided to take action after reading a Facebook post urging soldiers to be posted at every school in the wake of last week's tragic shooting in Connecticut. He told Fong he wanted to make the kids feel safe in light of what happened at Sandy Hook Elementary, the principal said.