 In early March 1941, the 2nd New Zealand Division (including Div Cav) was earmarked for W Force, the British Commonwealth force sent to Greece to bolster its defence against a German invasion. The regiment embarked for Greece on 18 March 1941 on the Greek ship Ionia, with its vehicles aboard the cargo ship Anglo-Canadian. The ships arrived at Piraeus on 21 March and the troops stayed at the transit camp at Kifisia. The regiment advanced northward, reaching its position on the Aliakmon Line near Katerini on 26 March. Its mission was to destroy the Aliakmon River bridges, delaying the German advance. Two troops of artillery, consisting of four 25-pounder and four 2-pounder guns, were attached to the regiment. On 4 April, two troops of Marmon-Harrington armoured cars were sent to reinforce the British 1st Armoured Brigade on the Macedonian plain and in exchange, the regiment received seven cruiser tanks. The two troops withdrew with the 1st Armoured Brigade when it retreated on 8 April and reached Perdika by the following day. The regiment and E Troop, 5th Field Regiment were the only units left on the plain between Mount Olympus and the Aliakmon on 8 April. The next day, A Squadron demolished the main bridge across the Aliakmon, after the 1st Armoured Brigade had withdrawn southward.
