By December, the convoy had reached South Africa and was preparing for the final stretch of its journey when news of the Japanese entry into the war was received. This resulted in most of the 18th Infantry Division being diverted to India to reinforce British forces facing the Japanese. The 53rd Brigade was sent to Singapore, from where it was deployed north to Johore and became embroiled in the Battle of Muar. After several short engagements with Japanese forces, the brigade was withdrawn to Singapore Island. Between 29 January and 5 February, the rest of the division arrived in Singapore having sailed from India. Shortly afterwards, the entire division participated in the Battle of Singapore.