On 8 September, two troops from No. 3 Commando took part in a dawn landing at San Venere as part of the main invasion, helping to clear the quay. The rest of unit arrived shortly after that and then they moved on to Vibo Valenta, where they waited for further orders. On 19 September, No. 3 Commando received orders to proceed to Bari along with the rest of Durnford-Slater's brigade. Arriving there on 30 September, two days later 180 men from No. 3 Commando, organised into four troops under Captain Arthur Komrower, embarked from Manfredonia as part of the attack force tasked with capturing the port of Termoli.