Question: What branch of military was the governor, who Sarah Steelman is currently serving, part of?
Related documents: [0]  [DOC] Eric Robert Greitens (born April 10, 1974) is an American politician, author, and former Navy SEAL currently serving as the 56th Governor of Missouri, since January 2017. He is currently the second youngest Governor in the United States, after New Hampshire's Chris Sununu. [END] 
[1]  [DOC] Sarah Steelman (born Sarah Hearne; May 3, 1958) is an American Republican politician from Missouri and State Treasurer from 2005 to 2009. She is currently serving in the Office of Administration in Gov. Eric Greitens’ administration. She did not run for re-election as state treasurer in 2008, having run for Governor, and was succeeded in office by Democrat Clint Zweifel on January 12, 2009. She was listed in a 2008 article in the "New York Times" as among seventeen women who may someday run for President of the United States. On November 29, 2010, Steelman announced she would run for the U.S. Senate in 2012. She was defeated in the Republican primary by U.S. Representative Todd Akin. [END] 
Answer: 
Navy
Navy