French President Jacques Chirac insisted Wednesday on an immediate ceasefire in Lebanon but admitted the United States had "reservations" over the wording of a UN resolution to end the conflict. Chirac was confident an agreement would be reached on a UN ceasefire resolution. "I cannot imagine that we fail to reach a solution, because that would mean we accept the situation as it is and renounce calls for an immediate ceasefire, which would be the most immoral of solutions," Chirac said. French and US diplomats were working Wednesday on a new draft resolution after Lebanon and Arab nations opposed an earlier text on the grounds that it did not call for Israel to withdraw its troops after a truce.