Complex sentence: The 1977 dissolution of the East African Community voided the East African Post and Telecommunications Act, which was replaced by the Uganda Posts and Telecommunication Corporation although this was not legalized by the parliament of Uganda until 1983.
Split into simpler sentences: The 1977 dissolution of the East African Community voided the East African Post and Telecommunications Act. The East African Post and Telecommunications Corporation (EAPTC) was replaced by the Uganda Posts and Telecommunication Corporation (UPTC), although this was not legalized by the parliament of Uganda until 1983.