Beginning in [[1641]], Fukuoka was assigned, along with [[Saga han]], to contribute to the defenses of [[Nagasaki]] harbor. As a result of this obligation of military service, the ''[[sankin kotai|sankin kôtai]]'' obligations of these two domains were lessened. | Beginning in [[1641]], Fukuoka was assigned, along with [[Saga han]], to contribute to the defenses of [[Nagasaki]] harbor. As a result of this obligation of military service, the ''[[sankin kotai|sankin kôtai]]'' obligations of these two domains were lessened. |