The Battle of Loos faltered due to lack of ammunition and reinforcements, resulting in 59,247 British casualties, the most of any battle on the Western Front that year.. German attempts to recapture the Hohenzollern Redoubt were hindered by fog and inaccurate artillery.. The No. 26 Squadron of the Royal Flying Corps was established in Netheravon from South African Air Corps personnel.. British destroyer HMS Mary Rose was launched at Wallsend.