The attack of the Otago Mounted Rifles at Messines, 7 June 1917, painted by Captain Matt Gauldie, official New Zealand Army Artist, in 2010.Gauldie’s dramatic painting shows a charge by a squadron of the Otago Mounted Rifles Regiment during the Battle of Messines in June 1917. These horsemen advanced nearly a kilometre ahead of the infantry on Messines Ridge, capturing several German prisoners and two field guns.