Ukraine has tested its allies’ patience with its military strategy and demands

Ukraine’s relationship with its international partners has become increasingly complex, and it was perhaps inevitable that tensions and differences of opinion between Kyiv and its allies arose as the war with Russia dragged on.

Ukraine has to tread a fine line with its international friends. It is reliant on its partners for billions of dollars’ worth of military hardware, as well as other forms of humanitarian and financial assistance, and it needs a continuous and increasing supply of arms to fight Russia. It insists, however, that it is fighting not only for its own survival but for the West too, facing a hostile and unpredictable Russia.

Kyiv’s biggest individual benefactors like the U.S. and U.K., who have given over $40 billion and $4 billion in security assistance to Ukraine, respectively, have pledged to support Ukraine till the end. The phrase “whatever it takes” has become a mantra often repeated at public gatherings of allies assessing the war and the military needs of Ukraine.

Kyiv has repeatedly thanked its partners for their help but, behind the scenes, frustrations have also come to a head and Ukraine’s ongoing needs and demands — and the military and political considerations of its allies — have clashed at times, prompting uncomfortable encounters.

Most recently, tensions have emerged over Ukraine’s military strategy and demands on NATO. Ukraine’s President Volodymyr Zelenskyy is said to have angered some allies ahead of the most recent NATO summit in Vilnius in July, when he described the lack of a timetable over the thorny issue of NATO membership, and “conditions” that needed to be met before an invitation to join was issued, as “absurd.”

Needless to say, Zelenskyy’s comments didn’t go down well in Washington either and the Washington Post reported sources noting that U.S. officials had been so roiled that they had briefly considered watering-down what Kyiv would be offered at the summit.

“The comments made by Zelenskyy before the last summit did not really resonate well in Washington … the U.S. administration was very annoyed,” a source with knowledge of the matter who asked to remain anonymous due to the sensitivity of the situation, told CNBC.

The source noted that Washington had also been vexed by other episodes in the war in which Ukraine had seemingly ignored its advice, making the NATO episode more frustrating for the White House.

“So the U.S. is strongly advising Ukraine not to do certain things, but Kyiv does them anyway, brushing aside or not addressing U.S. concerns. And they come at the United States, or Washington or the Biden administration, complaining about not being involved in NATO talks,” the CNBC source said.

In the end, the NATO alliance stood firm behind Kyiv and stressed its unity, keeping its eyes on the bigger objective: Ensuring Russia does not “win” the war against its neighbor and becomes emboldened to attack other former Soviet republics. Still, the episode highlighted Ukraine’s need to tread a fine line between the demands and pressures it places on its allies and appreciating its partners’ own perspectives, priorities and political considerations.

Kyiv is believed to have annoyed the U.S. when it decided to continue fighting for Bakhmut, a town in eastern Ukraine that has found itself at the epicenter of fierce warfare between Russian and mercenary forces and Ukrainian troops for over a year.

Almost surrounded by Russian forces who then claimed to have been captured Bakhmut back in May, military analysts questioned whether Ukraine would, and should, beat a tactical retreat from the town that was not deemed of strategic value. Ukraine decided to fight on, however, with that decision causing consternation in the U.S., according to Konrad Muzyka, a military intelligence specialist and president of Rochan Consulting.

“The Americans were encouraging, to put it mildly, the Ukrainians not to fight certain battles in the way that Russia wanted them to fight, as it could have long-term consequences in terms of manpower losses and artillery ammunition expenditure. However, for Kyiv, Bakhmut was more than a city. It was a symbol of Ukrainian defiance even though its strategic value was questionable,” Muzyka told CNBC.

“[But] the result is that they’ve lost a lot of men, and very experienced personnel as well. They expedited a lot of artillery munition, which would otherwise be used for this counteroffensive, and lastly, they burned out a lot of barrels for their guns, meaning they are unable to fully support their forces in the Bakhmut area.”

Retired British General Richard Barrons defended Ukraine’s approach to Bakhmut, telling CNBC that, domestically, “Bakhmut matters” for Kyiv. Defending the town appeared to be part of Ukraine’s wider “starve, stretch and strike” strategy, the former commander of the U.K.’s Joint Forces Command noted, in which it sought to wear down the Russian occupiers, attacking reserves, ammunition supplies and logistics, and to stretch Russian forces along the 600-mile front line.

Now, anticipation is rising for the “strike” part of the strategy with speculation mounting that Ukraine has just started to commit a portion of its reserve forces, including NATO-trained and NATO-equipped brigades, for a big push in an attempt to break through Russian defenses in southern Ukraine.

“We think we are about to see, but not necessarily, that uncommitted force being committed in an attempt to make a major inroad into the Russian occupation,” Barrons said, but he added that Ukraine should resist pressure from its allies to produce quick results, or to commit such forces before the conditions are right.

“Ukraine feels under pressure from his Western backers, to show progress in this counteroffensive, to prove to itself and the rest of us that this war can be won on the battlefield,” he said.

“But a sounder approach is to do things when when the time and timing is right. The very worst outcome for Ukraine would be that they would take this uncommitted force and batter it to pieces on the front end of Russian fortifications they’ve not been able to break through. That would be a tragedy for the people taking part and a tragedy this year for the Ukrainian campaign.”