During 1917 the Wellington Mounted Rifles Regiment (WMR) and the rest of the New Zealand Mounted Rifles Brigade (NZMR) take part in three battles for Gaza. After two setbacks, the third battle is won. The way is now clear for the Egyptian Expeditionary Force to advance along the coast of Palestine as far as modern-day Tel Aviv, and into the Judean Hills towards Jerusalem.
As part of a reorganisation of the British forces operating against the Ottoman Turks, the 22nd (Yeomanry) Mounted Brigade is incorporated into the Anzac Mounted Division. The Desert Column now comprises the Anzac Mounted Division, the Imperial Mounted Division and the 53rd (Welsh) Division.