 Walla Walla District of the U.S. Army Corps of Engineers invites the public to tomorrow's change of command ceremony at 10 a.m. at the Marcus Whitman Hotel and Conference Center. It will also be streamed on the district's YouTube channel. Lieutenant Colonel Shailen Kingslack will relinquish command to Lieutenant Colonel Catherine Werbach. Kingslack is slated to serve as the Corps Engineer at Joint Base Lewis-McChord. Werbach has been serving as the Deputy District Commander at the Portland District.