Operation Rising SunIn 1944 Allied codebreakers learned the Imperial Japanese Navy had dispatched the cargo submarine I 52 to occupied France with tons of military supplies and paymentin goldfor German assistance. I 52 undertook the mission as part of the Yanagi missions, a military program meant to alleviate Japans desperate need for military material and technical knowledge. After tracking I 52 from Asia to the Atlantic, the Allies destroyed the vessel in a battle that