Mitsu-san,
My humble apologies to you and to the people of Shikoku for its omission in our squadron artwork. This artwork was done by Bigred in 1999 when he started 27th Sentai in WarBirds and I do not know how it came to be left out.
However, Nifty's remark is well-taken. The missing land mass will be symbolic of all the missing Japanese planes in AH. If and when they are added, I promise to track down Bigred and get the original .psd file so I can add the island's landmass!