 Bravo de Acuña promptly began to construct galleys and other vessels in the shipyard, to defend the sea, which was full of enemies and pirates from other islands, especially from Mindanao.He was much preoccupied with settling matters with the Empire of Japan and with the Sultanate of Sulu, in addition he also had to see that the ships were robust enough to make the voyage to New Spain.A few days after his arrival in Manila, Bravo de Acuña received Chiquiro, an envoy from Tokugawa Ieyasu (or "Daifu Sama", as he was known to the Spanish), ruler of Japan.