 Nyorera kupfuurira kweiyi ndima - Muna Kubvumbi 1918, Bourke akazvipira Motor Launch yake kuti atore chikamu mukuvharirwa kwechiteshi cheBelgian cheZeebrugge-Ostend, panguva yeFirst Ostend Raid. Midziyo yokumhanyisa motokari yakapiwa basa rokununura vashandi vaibva mungarava dzakanga dzanyura mukuedza kuvhara. Pakutanga akarambwa kubva mukutora rutivi nemhaka yokuona kwake, Bourke akapfuurira kuzvipira kutanga kwake, pasinei nokuziva kuti kuzvipira kwakamuisa iye nevashandi vake munjodzi huru. Mukati mechiito usiku hwaApril 23, Bourkes Launch yakatora vafambisi vengarava makumi matatu nevasere kubva muchikepe chebhuroko ndokukwevera ML 532 akaremara kunze kwechiteshi. Nokuda kwokuratidza kutonhorera kukuru uye unyanzvi mukubata kwake motokari-kutanga, Bourke akapiwa Distinguished Service Order DSO. 