Complex sentence: Zambia is involved in a border dispute where Botswanas, Namibias, Zambias, and Zimbabwes boundaries converge, and one with the Democratic Republic of Congo concerning the Lunchinda-Pweto Enclave.
Split into simpler sentences: Zambia is involved in a border dispute concerning the convergence of the boundaries of Botswana, Namibia, Zambia and Zimbabwe. An additional disputee with the Democratic Republic of Congo concerns the Lunchinda-Pweto Enclave.