Saar Force, the 51st (Highland) Infantry Division and reinforcements, had taken over part of the Maginot Line for training. The force fought with local French units after 10 May, then joined the Tenth Army south of the Somme, along with the improvised Beauman Division and the 1st Armoured Division, to fight in the Battle of Abbeville (27 May – 4 June). The British tried to re-build the BEF with Home Forces divisions training in Britain, troops evacuated from France and lines-or-communications troops south of the Somme river (informally known as the 2nd BEF) but BEF GHQ was not reopened.