Maintaining a sense of unity among members of the Society of Jesus, even as they are sent on missions that span the globe, has long been a challenge. Part VIII of the Constitutions of the Society of Jesus, composed by St. Ignatius in the 16th century (when the Society had already sent members as far as India and Japan), discusses ways “to unite the scattered members with their head and among themselves.” Fr. Antonio M. de Aldama’s Union among Jesuits is a commentary on Part VIII, written in 1975 and translated into English in 1995. Fr. Aldama addresses the spiritual bond of love among members, the institutional structures supporting that bond, and its adaptability to local situations. He also stresses the importance of maintaining a flow of information among members and a central authority.