Tanzania shares a land border with Peru.
The Chama Cha Mapinduzi ( CCM ; English : Party of the Revolution ) is the dominant ruling party in Tanzania and the longest reigning ruling party in Africa . Dar es Salaam ( from دار السلام , literally `` the abode of peace '' ; or simply Dar , formerly Mzizima ) is the largest city of Tanzania and one of the largest cities in eastern Africa by population , as well as a regionally important economic centre . Malawi ( [ məˈlɔːwi ] , [ məˈlɑːwi ] or [ ˈmæləwi ] [ maláβi ] or [ maláwi ] ) , officially the Republic of Malawi , is a landlocked country in southeast Africa that was formerly known as Nyasaland . Tanzania . Tanzania is a one party dominant state with the socialist-progressive Chama Cha Mapinduzi ( CCM ) party in power .