 Complete the following phrase:  On 26 September 1940, the Guides Cavalry was mechanized as a Light Reconnaissance Regiment equipped with wheeled armoured carriers and 15 cwt trucks. In May 1941, it was dispatched to Iraq. The regiment took part in the Anglo-Soviet invasion of Iran, when one of its squadrons, supported by an infantry battalion, stormed and captured the city of Khorramshahr on 25 August. In June 1942, the regiment arrived in North Africa and covered the British Eighth Armys open desert flank as it withdrew towards Egypt after the debacle at 