Fort Dodge, Kansas or Fort Dodge, Iowa.
Either way, I doubt it had anything specific to do with dogs trained for war; the year is just coincidental.
A similar one for 1950 is found here:1950 Fort Dodge Cross Dog Tag Iowa or Kansas by PikesPeakShadow
Don........
I've come to the conclusion that these tags were not issued by the city of Fort Dodge but that there was a rabies serum vaccine producing company located there called "Fort Dodge Laboratories" and when you vaccinated the dog using that company's serum you were given the tag.