Cena, the bomb-sniffing dog who was suffering from cancer, received a hero's send-off in Muskegon on Wednesday.

He served until 2014, and then became a service dog for his first partner in the military - Lance Cpl. Jeff DeYoung.

DeYoung adopted him after being apart for four years. Recently, Cena was diagnosed with terminal bone cancer. So, after making what he calls the "hardest decision" of his life, DeYoung put together a proper send-off for him

More than 100 people, 30 Jeeps and countless American flags lined the route as Cena was driven in an open Jeep to the USS LST 393 Museum, where a vet was waiting to euthanize him. His dress blues uniform was handmade, just for him

He was carried out of the museum in a flag-draped coffin.

If you're not already ugly-crying, here's Jeff and Cena's story.