The TA's war deployment envisioned its piecemeal use, as equipment became available, to reinforce the British Expeditionary Force (BEF) already dispatched to Europe. The TA divisions would the join regular army divisions as the divisions completed their training and received their equipment, with the final divisions deployed a year after the war began. The division did not leave Britain at that time, since the BEF was withdrawn from France during the May–June 1940 Dunkirk evacuation. The evacuation had resulted in the abandonment of much of the BEF's equipment, leaving troops in Britain sparsely equipped. Priority for new equipment was given to a handful of formations that would respond to any German landings, leaving the 18th Division with little of what was required. An infantry division should have been equipped with seventy-two 25-pounder field guns; on 31 May 1940, the 18th Division was equipped with four First World War-vintage 18-pounder field guns and eight 4.5-inch howitzers of similar age. The division had no anti-tank guns (compared with the usual 48), and only 47 of the required 307 Boys anti-tank rifles.