The Army's announcement on its website lists 10 questions and answers and repeats the plea for information about her disappearance.
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The Army also has a missing person's announcement on their website in an attempt to spread awareness.
"We are very concerned for the welfare of PFC Vanessa Guillen and we fully understand the frustration felt by the family, friends and fellow Soldiers of Vanessa. We are doing everything in our power to get her back and will not stop until we do." they posted on the site.
The statement from the Army comes as Texas Equusearch crews were searching in Coryell County, Texas. Founder Tim Miller told KVUE-TV they received a tip and had reason to be in the area.
30 volunteers were looking for Guillen at an undisclosed location, Tim Miller from Equusearch said.
Part of the vast Fort Hood installation lies within Coryell county.
Friends and family of the soldier held another rally outside the gates of Fort Hood on Friday.
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The 20-year-old Houston native has been missing since April 22.
SEE RELATED STORY: Foul play suspected in disappearance of missing Fort Hood soldier Vanessa Guillen