I've heard it suggested that had Charles XII not been wounded, Sweden might have won the Battle of Poltava due to him being able to take operational command. How true is this?
I suppose it's possible but the odds are really really stacked against Sweden at this point. They're outnumbered, low on supplies, and far from anywhere friendly. The Russians have learned a lot of lessons since Narva, won some victories, and are a much tougher opponent. A lots more things would have to go wrong for Peter than for Charles for this to work, on average. Then again, battles really can be fickle.
Of course, nobody can tell for sure but personally I found this unlikely. Some of the Swedish problems in that battle had little to do with a leadership, like the columns losing their way after passing the Russian redoubts. Charles did not have any super natural abilities to see what’s happening and no communication means that would guarantee a perfect control. The final attack was in a “classic” Charles’ style: marching ahead in a complete disregard of the enemy’s strength and fire in expectation that all problems are going to be solved by the Swedish bravery. Actually, this approach already failed at Lesnaya but the Swedish generals and Charles perefered to ignore the unpleasant realities.I've heard it suggested that had Charles XII not been wounded, Sweden might have won the Battle of Poltava due to him being able to take operational command. How true is this?
I'm not very familiar with the details of Swedish history around that time, so I have some basic questions:
Would a Swedish victory have a great impact on history, with Sweden becoming an important European power till today or things would follow similar to OTL?
Did Sweden have great territorial ambitions? Did they proceed to conquest northern Russia heading to Siberia like Russians did or would that be ASB? I guess Sweden could at least keep Finland, Estonia, Latvia, West Pomerania till today, right?
For Sweden to actually win the war would require Peter to be killed or perhaps captured and the rest of the Russian leadership to lose heart. Also hard. Peter was pretty good at realising when things went pearshaped and get out - like he did at Narva.
The main problem was that Charles was a idiot with no plan for a real end game. Charles with some idea of what he wanted and how he would get it, that was what Sweden needed. Sweden could still win, but it would demand a lot of luck, like Peter the Great dying and for some reason a civil war broke out in Russia.
Actually, Charles did have a clear idea of what he wanted, which was good. Unfortunately, the goal was idiotic, which was bad.
The goal, as formulated at the start of the Russian campaign was return to the pre-war borders and monetary compensation for the military expenses. The second part, if formulated differently, was not unrealistic: by the peace of Nystadt Russia paid Sweden 2 millions thalers as a compensation for the lost territories. The 1st part, however, was an obvious non-starter.
As for the plan for achieving his goal, I quite agree with your assessment. It does not look like he had a coherent strategic plan of the campaign and his moves were to a great degree dictated by the search of supplies (in that game he was clearly outmatched by the opponents who were always couple moves ahead of him). March to Ukraine was dictated by the hope to get supplies (Menshikov got to them first) but as a way to defeat Russia the move was strategically meaningless because Swedes were marching in a wrong direction leaving the enemy with a complete freedom of action. Unless, of course, there would be friendly Ottomans and Crimeans ready to invade and march with the Swedes all the way to Moscow (the friendly ASBs were not yet discovered. ), which was one more fundamental delusion.
Then, there was obviously a hope to force enemy’s capitulation by a decisive battle but he clearly was not fast enough to force such an engagement and the whole idea seems to be too optimistic because it ignored enemy’s resources and readiness to fight.
It seems to me (of course, I can be wrong) that by the time he arrived to Ukraine his contact with a reality was already going down the tubes and some of his actions are rather hard to explain. Wasting time and scarce resources on a siege of absolutely unimportant small fortification like Poltava (earthworks and a wooden palisade with 28 guns) was absurd. Having between 6,000 and 10,000 Cossacks and using them just for digging the trenches (which the Cossacks of Zaporozie considered a humiliation) while the enemy was effectively using his Cossacks for the raiding was a tactical imbecility. Leaving a considerable part of his already diminished force to guard the siege works around Poltava thus making Russian numeric advantage at the battlefield even greater was either idiocy or sheer arrogance.
I don't think Karl's plannig or intentions were quite that bad - the options were to either go to Livonia, Estonia and Ingria - both the path there (through Lithuania and Polish-Lithuanian Ruthenia) and the provinces themselves lacked the food supplies for the main Swedish army, and Russia and Peter had already taken quite some losses staying in the war - some more and losing recent conquests and being thrown out of Ingria would not compel Peter to seek peace. Going into Russia was the only way to actually decide the war - the decision was in that way actually strategically sound. The Swedish army and state was built around the decisive battle and seeking out the enemy and force him to battle.
Yes, invading Russia is a bad idea in general, because Russia and Peter has the option to trade land for time and bleed an enemy to the death by a thousand small cuts, but at that point Karl and Sweden had no real other options except ceding Ingria to Russia, which would be unrealistic considering Sweden had won nearly every engagement with Russia for the last 8 years.
This lead to a considerable amount of arrogance on the Swedish side, which was further reinforced by Grodno and Holowczyn 1708, both of which seemed to confirm that Swedish forces varying from 1/4 to 1/3 of the enemy army could decisively defeat the Russians reliably.
In hindsight, the Swedish invasion of Russia was idiotic, as Sweden lacked the strategiv ability to force anything on Russia, but at the time and to the Swedish command, including Karl, it seemed like the only option to actually force Peter to commit things he could not afford to lose (which we in hindsight know was not the case) and thus the only real option to win the war for Sweden.
By Poltava, the Russian army had become good enough to stand against the best of the Swedish army, at least when it had been depleted by nearly a decade of war, disease and bad supply. But I don't think Karl's grip on reality was slipping - the decision was a logical one without the benefit of hindsight and even when Russia won and all other enemies piled back into the fight, Sweden proper (without Finland), the main source of Swedish income and manpower, was mostly safe from enemy action beyond some coastal raids by the Russian archipelago navy.
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