The Mozambique – Zambia boundary extends for 441 km between the tripoint with Zimbabwe in the southwest and the tripoint with Malawi in the northeast. Initially delimited in general terms in an Anglo–Portuguese treaty in 1891, the boundary was described more precisely by a demarcation commission in 1904, which was confirmed in 1911. It follows the Luangwa river northwards from the Zimbabwe tripoint up to the 15° N parallel, then comprises a series of straight line sections passing through 38 beacons to the tripoint with Malawi. With the assistance of the African Union Border Programme, the boundary has recently been reaffirmed and redemarcated by the two governments, and a new boundary treaty is reportedly being prepared.