Clichés are usually truths which have somewhat lost their impact through repetition. That repetition takes place because the truths concerned were originally mordantly appropriate. Try out 'If war is the answer, what is the question?' and ' if all you have is a hammer, everything looks like a nail'.
A new report from Quaker Peace & Social Witness describes Armed Forces Day as one strand in a government strategy to reverse falling recruitment and declining public support for military interventions.