In 1944 Allied codebreakers learned the Imperial Japanese Navy had dispatched the cargo Submarine I-52 to occupied France with tons of military supplies and payment--in gold--for German assistance.
After tracking I-52 from Asia to the Atlantic, the Allies destroyed the vessel in a battle that ended the Yanag.
I-52 undertook the mission as part of the Yanagi missions, a military program meant to alleviate Japan\'s desperate need for military material and technical knowledge.
In 1944 Allied codebreakers learned the Imperial Japanese Navy had dispatched the cargo Submarine I-52 to occupied France with tons of military supplies and payment--in gold--for German assistance