Here’s a paragraph from Allan Monkhouse’s 1919 novel, True Love (about which I shall write more later):
He encountered queues of men at the recruiting offices waiting their turn to enlist. One day he walked along a line, and, regarded critically, it didn’t seem that the might of Germany had much to fear from these. They looked strangely small and shabby ; they joked a little sometimes, they lounged, they spat; some looked sullen, and some appeared to be gazing at an object infinitely far away; many had the Briton’s air of consciously making a fool of himself. He came to the end of the line and started, for there was the little man of the German restaurant. He looked defiant and apologetic too. He grinned faintly and said : “Ad to do it.” And Geoffrey felt then that there had never been anything like this in the world before, that nothing had ever mattered so much, that to falter now would be baseness and misery. As he paused there, the little man looked at him inquiringly and muttered again : ” Ad to.” Geoffrey shook hands with him and hurried away.
He saw Lindsay that night and told him that he wanted to go.