Tank ping
But although the story about Tank the black lab is false, the storys larger point about veterans willingness to sacrifice for the greater good is accurate. Thats likely why the eRumor has persisted since 2008.
Sorry.
Not that it would have mattered in this case, there are many programs for active military where their pets will be looked after when they are deployed.
http://fosterdogs.com/helping-owners-keep-their-dogs/military-pets.html