OOTF 2 Now the Allies have captured plan Z we are sure the Japanese cannot make new plans as they ran out of letters again after using up their other 3 Alphabets.
PS Note Wookiee has no alphabet and if it had we are not giving you any letters and just pull your Samurai Sword Arm out of its socket! 
It’s Grr, Gri, Raa and Bra 
Because of self inflicted limitations (Wikipedia EN):
“However, the need to limit the number of kanji characters was understood, and in May 1923, the Japanese government announced 1,962 kanji characters for regular use.”
indeed lol that makes a lot of sense
Well, yes, of course you’d provide a limited vocabulary and character list for the hoi polloi, but that doesn’t limit the choices for the “great and the good” of society!