The fighting has been divided into five stages, an encounter battle from 19 to 21 October, the Battle of Langemarck from 21 to 24 October, the battles at La Bassée and Armentières to 2 November, coincident with more Allied attacks at Ypres and the Battle of Gheluvelt a fourth phase with the last big German offensive, which culminated at the Battle of Nonne Bosschen on 11 November, then local operations which faded out in late November.