Japan might be an island, but that doesn't mean they're completely isolated from foreign hostility. This episode features the tale of how Hojo Tokimune managed to fend off Kublai Khan's attempts to reach Japan.
Tokimune had stone walls built along the 
coast to keep Yuan ships from getting in.
Tokimune creo un muro de piedra en la
costa para bloquear los barcos de Yuan.
Tokimune construiu paredes de pedra ao longo
da costa para impedir o desembarque de Yuan.