That this many remained despite a concerted effort by the CAB to put them out of business was due entirely to the Cold War. In times of national emergency the non-skeds undertook scores of cargo and passenger contracts from the military, fulfilling an essential service to the country while sustaining their enterprises. Seaboard &amp; Western, Transocean, and Slick Airways notably aided the US Air Force in performing the Berlin Airlift in 1948–1949. The non-skeds transported supplies across the country and the Atlantic Ocean to Rhein-Main Air Base, where the Air Force and Navy's combined fleet of C-54s was continuously engaged in airdropping necessary commodities into West Berlin. And again once the United Nations approved a US-led intervention in Korea in 1950, non-skeds took on the role of flying men and matériel to Japan, where the military transported them to the front. 50% of all cargo and personnel brought to the conflict were delivered by nonscheduled airlines, with special note going to Transocean and National Overseas Airways. The non-skeds proved to be the only non-military transports capable of carrying out such a colossal effort without receiving advance warning or impacting the domestic commercial network of the United States. Financial security was not the only benefit non-skeds enjoyed from their relationship with the armed forces, however—the respect of the military gave them a crucial ally in government with the potential to counterbalance the CAB.