Where does Ukrainian infighting leave the country in its war with Russia? - Patrick Mercer

Next, both sides must know that Mr Putin’s party will win the Legislative elections in Russia on September 20. But, what will follow? If it’s a clear win an emboldened president may choose to mobilise large numbers of reserves and swamp the front lines in a way that he hasn’t been able to so far.

Then comes the weather. By late October not only will the bezdorizhzhia - cloying mud - season set in, but heating systems shattered by Moscow’s rockets and drones will become a decisive factor.

The next timeline is less exact, but has been brought into focus by Kiev’s often savage politics. Russia knows that she struggles to compete with Ukrainian technical innovations that are made possible by western money and research. This manifests itself in an uneven race of drones, ballistic missiles, air defence and guidance systems which Kiev may permanently dominate within the next year or so.

But Moscow might avoid that advantage by pushing her own wartime economy hard in the next few months accepting a dip in living standards and the cost in blood and gold. Ukraine, though, has shown a remarkable ability for long range strikes against Russian logistics which have given her a much stronger negotiating position.

Now there’s nothing new about this indirect form of war. Think of the Allies’ intense - and costly - bombing of the Nazis’ infrastructure: eventually Hitler’s ambitions were strangled. Now Kiev’s adopted the same strategy but carried out by drones and missiles and its champion was Ukraine’s defence minister, Mykhailo Fedorov.

In his 30’s with no military background, Fedorov brought a wealth of energy, IT/AI knowledge and a steely determination to innovate. He was appointed only six months ago and with very little good news for Ukraine on the front lines, Fedorov soared to hero status as complex drone tactics caused publicity grabbing, morale boosting attacks to succeed not only in Moscow and St Petersburg but right across the Crimea as well.

The trouble is that Fedorov found it impossible to work with Ukraine's Commander-in-Chief (CinC), General Oleksandr Syrskyi. Now, the CinC has had a mixed reputation. As a tactician he’s been largely successful, but he comes from a Russian family background and is widely viewed as a plodder schooled in rigid Soviet doctrine which often seems careless of soldiers’ lives.

Conversely, General Syrskyi has suggested that Mr Fedorov hasn’t grasped that drones and electronic warfare need to be backed up by conventional forces and, crucially, that the bitter problem of conscription has not been gripped by the Minister.

Disturbing footage of very violent press gang techniques by Ukrainian ‘recruiters’ has been widespread. Russia has used it as black propaganda and it has become a deeply divisive issue for the ordinary people of Ukraine who see their menfolk being brutalised, ill trained and then forced to fight.

Finally, the tensions between the soldier and the politician exploded and compelled Mr Zelensky to step in. He did: he sacked Mr Fedorov. Almost instantly, though, crowds took to the streets across the country angrily protesting that the minister should be reinstated. Most carried placards, upon which one slogan was particularly pointed, ‘The cheese has gone rotten’ a pun on the Russian word for cheese - syr - and the General’s name!

President Zelensky, of course, is acutely aware of the potency of demonstrations. Those of 2014 paved the way for his own rise to power, then he bowed to the ugly mobs which gathered last July when he tried to castrate the government’s anti corruption agencies. Now the protests continue, yet this time Mr Zelensky has stood firm refusing to reappoint one of his most effective ministers.

At first this was pitched as a clear victory for General Syrskyi. His argument was that whilst drone operations were succeeding against Russian logistics the decisive land battles were just beginning. The first stronghold of the Donbas’s ‘Fortress Belt’ - Konstantinovka - was in deep peril and the Russians were preparing to pivot northwards to outflank the great prizes of Kramatorsk and Sloviansk.

This had been predicted in detail by the CinC; plans had been made and rehearsed for what was about to happen. Intelligence assessments suggested that Moscow’s troops would overreach themselves and stall just as the weather turned.

Large scale manoeuvre would become even more difficult and President Putin’s troops would be vulnerable to Syrski’s men who knew the ground, roads and towns intimately and were fully prepared to counter attack. Despite the political pressure it made sense to leave the General in post.

So that’s what President Zelensky did: he backed his General. Until he didn’t. As the protests swelled Zelensky made the bizarre decision to remove Syrski only on August 18, just as Kiev’s MP’s returned from their summer holidays and, probably, right in the middle of fierce combat. Then another U-turn: General Syrski was decisively fired last Wednesday - just as he was deploying his reserves.

In view of all this the staunchly pro-Ukrainian New York Times’ judgment makes uncomfortable reading: “…infighting has cracked the all-important sense of wartime unity and overshadowed the narrative that Ukraine is riding high... Rather than capitalising on its momentum, Ukraine is now grappling with military upheaval at a critical juncture…”

Patrick Mercer is a former MP for Newark and Army Colonel.