Japanese Zeppelins,
seriously??
Well, actually
almost.
As a victory nation, Japan received LZ75, an R-class ship, from Germany as reparation in 1920. It was delivered in disassembled state, along with a complete hangar. Little is known about it's fate but it never was reassembled to fly. But the hanger was erected and housed Graf Zeppelin during it's world tour in 1929.
For a time, Japan had a determination to develop a Naval Airship Service, one of the more notable pilots being Takijuro Onishi who was trained in England after World War One and who went on to conceive the idea and tactics for the Kamikaze planes of World War II.
Now what if Onishi was reporting back about the trials with R.33 and parasite planes and what if that idea would have been adopted by the IJN...
Here we see LZ75 "Amaterasu" in it's late configuration over Mount Fuji, ca. 1927, approaching a BAT TGA near you.