In this stanza, Kipling says "Take up the White Man's Burden" or send the best ye breed" or their sons to the colonies. There he wants them to "serve your captives' [indigenous people's] need". What does Kipling believe the "half-devil and half-child" people need from the Europeans

Kipling believes in this: when a white country is colonized, it has people who are characterized as "half devil and half child". So, the country must to take care of those people in all. Also, we have to bear in mind that Kipling's intended readers were American, not European. Kipling portrays imperialists as possessing a superior culture and level of civilization compared to native peoples.