Generate a correct and concise answer for the question based on the words in the context.

Context : The 18th Mounted Brigade previously known as the 2/1st Yorkshire Mounted Brigade was a 2nd Line yeomanry brigade of the British Army during the First World War. 
Question : To which branch did 18th Mounted Brigade belong?
British Army

Context : James S. Roantree (1835 -- February 24, 1873) was a sergeant serving in the United States Marine Corps during the American Civil War who received the Medal of Honor for bravery. 
Question : What award was received by James S. Roantree?
Medal of Honor

Context : In 1999 Lambchops was selected for preservation in the United States National Film Registry by the Library of Congress as being ``culturally, historically, or aesthetically significant.'' 
Question : Which award was bestowed upon Lambchops?

National Film Registry