After a period of military administration, the British dissolved the Straits Settlements in 1946 and proceeded to merge the Crown Colony of Penang into the Malayan Union, which was then replaced with the Federation of Malaya in 1948. However, the absorption of the British colony of Penang into Malaya alarmed Penang's population over economic and ethnic concerns. Between 1948 and 1951, the Penang Secessionist Committee was formed to avert Penang's merger with Malaya, but ultimately petered out due to British disapproval.