'one , your basic soldier who 's fightin ' for pay rather than his life ai n't goin ' to stick his neck out when there 's all these other blokes around who might as well do the business , and , two , not very many of 'em are goin ' to be able to get near us at one time and they 'll all be pushin ' and shovin ' , and ... ' he looked at his fingers with an expression of terminal calculation .