 Complete the following phrase:  The brigade was among the first British formations to be sent overseas as part of the British Expeditionary Force BEF, crossing to France between 11 and 16 August 1914. It served on the Western Front in 1914 and 1915 taking part in the Battle of Mons 23 and 24 August 1914, the First Battle of the Marne 69 September, the First Battle of the Aisne 1320 September, the 