Utah Army National Guardsmen receive a safety briefing on where and how to conduct their search and rescue efforts following deadly flooding near the border town of Hildale, Utah, Sept. 16, 2015. The soldiers are assigned to the Utah National Guard’s 2nd Battalion, 222nd Field Artillery. Gov. Gary Herbert activated the Utah National Guard to assist local first responders. The flash flooding is believed to be the single most deadly weather event in Utah history.