64 The big battalions This is a war of machines as well as men. Ships, guns, aeroplanes and equipment cost money. It is the big battalions of our factories and workshops, the men and women of our home front and the big battalions of shillings and pounds which will help us to win this war. And where are they — these sinews of war? In your pocket. In your purse. In your pay-envelope. In your pass-book. This is the urgent fact for us all to-day —you cannot spend a single shilling on your- self, without reducing Britain's war strength.