 Kofi Annan has spent the past 36 hours engaged in shuttle diplomacy, knocking heads together for the sake, he says, of Kenya and the whole of Africa. Europe's decided to send a peace mission to Belgrade. The Finnish president, Mati Atasari, will go tomorrow to see whether the Serbs might be ready to back down. The battle for peace is the most difficult battle of our lives. It deserves our utmost efforts.