Frederick W. Kagan
offers a primer on the terms of art military analysts use.
The technical terms “stalemate,” “campaign,” and “culmination” can confuse the lay reader unfamiliar with military terminology. This note offers an explanation of those terms with reference to historical examples in World War I and World War II, recognizing that historical analogies are always limited.
A campaign is a major military undertaking launched as part of a war effort to achieve one or more objectives that are necessary but not necessarily sufficient to achieving the overall war aims. The Russian invasion of Ukraine that began nearly a month ago was such an undertaking—its aims of seizing Kyiv and Ukraine’s other major cities were part of a larger effort to replace the government of Ukraine, destroy the Ukrainian military, and allow Russian President Vladimir Putin to set political, economic, and security conditions in Ukrainian territory to his liking.
The "part of a war effort to achieve one or more objectives" matters. In the current case, the overarching objective is the creation of a more Russia-friendly Ukrainian state. Given the size of Ukraine, it might make sense to think of the movement on Kiew as analogous to the
Vicksburg campaign, with the southerly push an attempt to connect the Russian-aligned populations along the Sea of Azov and the Black Sea. (If you're into counterfactuals, what would have happened had
McClellan taken Richmond in 1862, with much of the cotton South untouched?)
"Culmination" is the interesting term. It refers to a situation in which the addition of resources to a campaign fail to achieve results.
It is useful to compare Putin’s initial campaign with the German invasion of the Soviet Union (USSR) that began in June 1941. The German objectives were to seize Leningrad (today’s St. Petersburg), Moscow, and Ukraine to knock the USSR out of the war quickly. The Germans destroyed huge portions of the Soviet military, besieged Leningrad, reached the outskirts of Moscow, and then the campaign culminated in winter 1941. Like the Russians in Ukraine today, the Germans in 1941 continued to try to get more combat power to the front and launch increasingly hopeless attacks against Moscow well past the point of diminishing returns—which is one sign that a campaign has culminated. The Germans failed to take any of their objectives.
That remains to be seen. It took Grant and Sherman a long time to invest Vicksburg, and Northerners grew frustrated with the pace of operations outside Petersburg. In neither case could the rebels be resupplied, though. It's still possible for outsiders to supply Ukraine, and that turns culmination into stalemate.
Stalemate describes a condition in war in which neither side can change the front lines dramatically no matter how hard it tries. WWII never reached stalemate in Europe. The opponents alternated offensive and defensive campaigns but were almost always moving. World War I epitomized stalemate. Stalemate in that conflict, as in others, saw lots of very hard and nasty fighting with many casualties on both sides. The front lines became generally (but not completely) static, with very little movement. There was always some movement of the lines even in World War I, but never enough to change the situation materially.
But stalemate often involves large and bloody battles. The Battles of the Somme, Verdun, and Passchendaele took place in conditions of stalemate. Hundreds of thousands were killed in those battles that moved the front lines a little, but not much. And stalemates can ultimately be broken, as the one in World War I eventually was. One side or the other can lose its will. One side or the other can gain a new ally (like the US in World War I). One side or the other can gain a technological advantage, although that’s less common (and was less important in World War I than the entry of the US). One side or the other can just be ground down and collapse (like Russia in 1917). Many things can happen in the context of a huge amount of fighting and dying, all in conditions of stalemate.
Note that the military meaing of "stalemate" differs from the
chess meaning. "Stalemate is one of the drawing rules of chess. It happens when the player who has to move has no legal moves available. The game then ends immediately in a tie, and each player is awarded half a point." Often, that arises when the player with an overwhelming advantage in material or position leaves his opponent with no legal move, an embarrassing mistake that even the Grandmasters sometimes make. (They get to write about those instructive errors in their books.) It's a useful technique that even beginning players can develop. Consider the
simplest of King and Pawn endgames: one student has to promote the Pawn, the other has to stop it.
To win, maneuver the King ahead of the Pawn, with the opposition. The other player must move his King, and then the player with the Pawn can take a step forward with the King and advance the Pawn. But if it's a Rook Pawn or Bishop Pawn, even that isn't good enough.