Joffre sent a letter of congratulation (26 September)—Clive sensed that Joffre did not really believe the British attack would succeed but wanted it kept going as a diversion from Champagne, although after complaints from Sir John that the French Tenth Army were not doing enough Foch ordered them to take over some line from the British around Loos. When the British reserves were ordered to attack on the second day (26 September), the advancing divisions found unbroken barbed wire and intact and ungassed German defenses. The slaughter that day resulted in 7,861 British casualties without a single German casualty.