In February – March 1941, the regiment joined the rest of the 9th Division; the regiment was sent to Amiriya in Egypt, where they were hastily issued with a mix of weapons including captured Solothurn anti-tank rifles, Italian 47 mm guns, and 37 mm Bofors guns. Amidst the chaos and confusion of the German offensive in Cyrenaica, the regiment was dispersed across several locations – the 9th Battery garrisoned the port of Tobruk, while the 12th remained on the Egyptian border. The 11th Battery, and regimental headquarters, was allocated to support the 3rd Indian Motor Brigade at Mechili, where they were heavily engaged over three days in early April. After the town was surrounded by German armoured forces, the force attempted to break out and withdraw back to Tobruk. Some was eventually captured; the regiment lost 91 men captured, including Munro, as well as four others killed and seven wounded.