Commentary Great commanders understand the importance of choosing their battlefields carefully and, whenever possible, fighting on the most favorable and advantageous terrain. At Gaugamela, the outnumbered Alexander the Great got Darius right where he wanted him, and destroyed the Persian Empire. Outmanned, Caesar maneuvered Pompey into a tight spot at Pharsalus and won the Roman civil war. As far back as 216 BC, Hannibal trapped the legions of the Roman Republic at Cannae in a perfect double-envelopment from which there was no escape, and slaughtered them to nearly the last man. Even if the odds are against you, in other words, a smaller and generally more mobile force can defeat a large army if the field of fight is advantageous. As American conservatives—traditional Americans, we should more properly call them—continue to reel from the cultural and political onslaught of the Biden/Harris/Ron Klain/Barack Obama administration, it’s about time we come to …