From Sonnet 15:
For what can Warrs, but endless Warr still breed,
Till Truth, & Right from Violence be freed,
And Public Faith cleard from the shamefull brand
Of Public Fraud. In vain doth Valour bleed
While Avarice, & Rapine share the land.
Sometimes even the puritans get it right. I've been distracted by fine literature, but it's important to remember that Americans are still killing and being killed in at least two countries. And the bleeding shows no signs of abating anytime soon.