The back story: The float he was on was sponsored by the Pentagon, for the Military Working Dog Memorial. He won a contest to be reunited with his family at the Rose Parade; he told his wife he won a contest for a trip to the Rose Parade for her and their son...
Soldier reunited with family in Rose Parade's most surprising moment - latimes.com
A little more video here: Decorated Soldier Reunited With Family During Rose Parade « CBS Los Angeles
He looks awful young to be a Sergeant First Class. Or maybe it's just me...
(I also note, FWIW, that's is originally from Michigan.)