On 18 August the Germans attacked again, captured Halen, entered Tienen and attacked the 1st Division frontally and on the northern flank, which the 1st Division repulsed only with great difficulty.
Den 18. august angreb tyskerne igen og erobrede Halen, gik ind i Tienen og angreb 1. division frontalt på den nordlige flanke, hvilket 1. division slog tilbage, om end kun med stort besvær.