Maj. Terry McDonald serves with the Corps of Royal New Zealand Engineers. He’s currently attending the U.S. Army Command and General Staff College at Fort Leavenworth, Kansas, and has earned commendations for service in Afghanistan and Sudan.

Sunday’s observance begins at 10 a.m. in the J.C. Nichols Auditorium inside the museum, which is topped by the Liberty Memorial. It is scheduled to conclude at 11 a.m. — the hour at which the armistice that ended World War I took effect.

Visitors will be able to tour the museum free of charge after the ceremony until 5 p.m.