By mid-1950, the BCOF was winding down. All the contingents other than the Australians had departed, and the Australians were preparing to leave. For his services as commander of the BCOF, Robertson was created a Knight Commander of the Order of the British Empire (Military Division) (KBE) in the King's Birthday Honours List. Robertson intended to travel to London to be invested by King George VI but his plans were disrupted by the outbreak of the Korean War on 25 June 1950. Robertson passed on to the Australian government requests from MacArthur for BCOF assistance, which were agreed to. He committed the frigate and No. 77 Squadron RAAF but, although authorised to do so, he hesitated to deploy the 3rd Battalion, Royal Australian Regiment, as he considered the risks too great.