Complex sentence: The Europeans insisted that the RPF forces withdraw to the zone they had held before the February offensive, while Kagame maintained that he would only agree to this if the Rwandan army were forbidden from re-entering the newly conquered territory.
Split into simpler sentences: The Europeans insisted that RPF forces withdraw to the zone they had held before the February offensive. Kagame responded that he would only agree to this if the Rwandan army were forbidden from re-entering the newly conquered territory.