During the end of the 1950s the IDF realized that they were lacking a small SF unit, since the T'zanhanim company had turned into an infantry brigade. That is the main reason why Avraham Arnan formed the Sayeret Matkal in 1958. In various ways the Sayeret Matkal combined the operational experience gathered by Unit 101 and utilised the structure of the British Special Air Service. After losing their special forces title, the T'zanhanim company formed its own SF unit—the Sayeret T'zanhanim in October 1958.