On the morning of April 9, 1865, one hundred and fifty years ago, the main Confederate army attempted a last desperate escape from its encirclement southwest of Richmond, Virginia. The attempt was over by the break of dawn, and General Robert E. Lee sent a letter to General Ulysses S. Grant. Grant later described that he'd been suffering from a terrible migraine headache for hours on that morning, and that the moment he read Lee's letter his headache disappeared.
How does a war end? There are many different possible ways. Recent US wars in Iraq both ended badly and uncertainly, as our invading forces left vacuums of power behind. But questionable wars do not always end badly. The US/Vietnam War, which began exactly a hundred years after the US Civil War ended, was finally resolved in an luxurious European conference room by depraved and nefarious diplomats. And yet the unified Vietnam that emerged from this banal treaty turned out to be a peaceful presence in the world.