The loss of materiel on the beaches was enormous. The British Army left enough equipment behind to fit out about eight to ten divisions. Discarded in France were, among other things, huge supplies of ammunition, 880 field guns, 310 guns of large calibre, some 500 anti-aircraft guns, about 850 anti-tank guns, 11,000 machine guns, nearly 700 tanks, 20,000 motorcycles and 45,000 motor cars and lorries. Army equipment available at home was only just sufficient to equip two divisions. The British Army needed months to re-supply properly, and some planned introductions of new equipment were halted while industrial resources concentrated on making good the losses. Officers told troops falling back from Dunkirk to burn or otherwise disable their trucks (so as not to let them benefit the advancing German forces). The shortage of army vehicles after Dunkirk was so severe that the Royal Army Service Corps (RASC) was reduced to retrieving and refurbishing obsolete buses and coaches from British scrapyards to press them into use as troop transports. Some of these antique workhorses were still in use as late as the North African campaign of 1942.