Complex sentence: The security environment in Namibia changed in the lead-up to the election, including violence in Namibia and an increase in fighting between FAPLA and UNITA troops across the border in Angola.
Split into simpler sentences: The security environment in Namibia changed in the lead up to the election. This included violence in Namibia as well as an increase in fighting between the FAPLA and UNITA troops across the border in Angola.