Final answer:
Paragraph 18 likely illustrates the defiance of Indian leaders against colonization, as exemplified by leaders like Sitting Bull who resisted American expansion until death.
Step-by-step explanation:
Paragraph 18 is likely to reveal the defiance of the defeated Indian leaders who led the resistance. For instance, Lakota Sioux spiritual leader Sitting Bull, a symbol of such defiance, united multiple tribes to resist forced removal and did not capitulate until his death. This parallels the larger context of Native American resilience against American expansion and policies like the Indian Removal Act. Furthermore, as depicted in the provided information, Indian tribes and nations supported the British in hopes of preserving their lands, illustrating their strategic approach to resisting colonial powers. The question aims to understand the role of this particular paragraph in the context of the author's explanation of Indian resistance to colonization.