(Portland, OR) -- A 24-hour vigil will start at 11 o'clock this morning on the University of Portland campus at the Praying Hands/Broken Wall Memorial to honor veterans. Air Force and Army ROTC cadets will stand constant watch. It'll end with a retiring of the guard and a posting of colors during a ceremony on Friday at 11 a.m. Brigadier General Donna Prigmore, Commander of the Oregon National Guard, will speak at the event. It's open to the public. The ceremony has been held for more than 60 years.