War broke out between the Trinh and the [[Nguyen lords]] of central Vietnam in [[1627]], and the Nguyen successfully petitioned the Tokugawa to sever formal ties with the Trinh, and to restrict trade with northern Vietnam. As a result, Japanese trade activity in northern Vietnam declined considerably, though by the late 1630s, only a decade later, the shogunate's policy of [[maritime restrictions]] would cause Japanese trade in Southeast Asia to decline almost entirely. | War broke out between the Trinh and the [[Nguyen lords]] of central Vietnam in [[1627]], and the Nguyen successfully petitioned the Tokugawa to sever formal ties with the Trinh, and to restrict trade with northern Vietnam. As a result, Japanese trade activity in northern Vietnam declined considerably, though by the late 1630s, only a decade later, the shogunate's policy of [[maritime restrictions]] would cause Japanese trade in Southeast Asia to decline almost entirely. |