What is the summary of this stanza -that we may bring if need arise. No maimed or worthless sacrifice. written by J.R. Kipling?

In this stanza by J.R. Kipling, the idea conveyed is the importance of being prepared to make sacrifices, but emphasizing that these sacrifices must be of value and not half-hearted or meaningless. It highlights the need for genuine and worthy contributions when the situation demands it.