Are Ukraine's F-16 fighter jets too little too late?

The long-awaited arrival of American F-16 fighter jets in Ukraine marks "a new chapter" in the war against Russia.

So said Volodymyr Zelenskyy on Sunday, confirming for the first time that the aircraft had started operations against Russian forces . "We often heard the answer that it was impossible," the Ukrainian president said during the unveiling ceremony for the country's Air Force Day. "Now it is a reality."

Kyiv has been urging its Nato allies to provide the supersonic "Fighting Falcons" jets since the early days of the war . The so-called F-16 coalition of European nations – led by Denmark and the Netherlands, and including Belgium and Norway – promised to send 79, but had to await US approval for the export , which the Biden administration  granted only last August. Training pilots to use the aircraft has since taken months.

"I am proud of our guys who are mastering these jets and have already started using them for our country," Zelenskyy said, thanking allies. "It's good that they are here and that we can put them to use."

What did the commentators say?

It was a "pivotal moment for Ukraine", said CNBC , as Zelenskyy watched two F-16s "roar overhead". Kyiv has "repeatedly requested" the aircraft and Ukraine hopes they will "change the dial" in the war. "F-16s bring just and lasting peace closer," Zelenskyy said earlier this year.

They do "offer a significant improvement" to jets Ukraine inherited from the USSR, said CNN . They can provide air cover for ground troops and critical infrastructure, or attack Russian targets and enemy planes.

Their arrival is "better late than never", said The Economist . Although numbers are "too few", their importance "should not be underestimated". The immediate impact will be a "boost to morale". They could also "lessen the impunity" with which Russian glide-bomb aircrafts have been "pummelling Ukraine's front lines"; the Russian aircrafts' range means they don't have to leave Russian airspace and risk being shot down. The F-16s can use cheaper heat-seeking missiles to take out those munitions.

However, there has been a "pitiful" lack of training slots for Ukrainian pilots. F-16s are very different and more complex than the aircraft they know.

Zelenskyy declined to specify "the numbers involved", said the Kyiv Post . But he admitted that the number of jets and trained pilots is "not enough". Far from it. The Ukrainian army will only be able to use a handful of jets in combat at a time, as two pilots are needed for each plane.

Ukrainian officials also warned that the long delay in delivering the F-16s could have allowed Russia time to adapt its tactics. Indeed, Russia has already benefited, said Robert Clark, director of defence and security at Civitas, in The Telegraph .

The Russian offensive around Kharkiv this year put "immense pressure" on Ukraine's defensive lines. Russia sought to "capitalise" on that with "devastating" missile and drone attacks on civilians and infrastructure – even schools and hospitals . Meanwhile, politicians " dithered and delayed time and again" with "pointless discussions" about Russian escalation. Western lawmakers "insist on the political luxury of time" – which Ukrainian frontline troops " pay for in blood ".

"The sad truth is that this war could have been won a long time ago," said Clark. It may now never be won unless the West can "find its collective courage" and send Ukraine the weapons it needs, before it's too late.

What next?

Ukraine should be flying 20 of the fighter jets by the end of 2024. "Many of our men are currently studying and training," said Zelenskyy. Western allies will "find an opportunity to expand the training platform for our pilots and engineers".

Most of the remaining jets are expected in batches throughout 2025. But some may be in such poor condition that they will serve as nothing more than a source of spare parts, said The Economist. Ukraine needs 12 or more squadrons of 18 planes each to achieve air superiority – at least 216, according to the Centre for Strategic and International Studies .

The F-16s will be "shot down and destroyed", said Kremlin spokesman Dmitry Peskov. "There is no 'magic pill' here. There is no panacea," he told reporters, according to Russian state news agency Tass .

F-16s "should not be viewed as a game-changing weapon", Mykola Bielieskov, a research fellow at the National Institute for Strategic Studies think tank, concluded in an analysis for the Atlantic Council . They cannot "change the course of the war".