Members of the Spokane-based 141st Air Refueling Wing deployed Monday on a mission to build a field hospital, not in Iraq or Afghanistan, but in Nogales, Ariz. The 16 civil engineers and medical personnel with the Air National Guard Unit are the first Washington Guard members to take part in Operation Jump Start, President Bush's plan to supplement U.S.-Mexico border security with 6,000 National Guard members until additional U.S. Border Patrol agents can be hired and trained to prevent illegal crossings.