The West hasn't phased out all of its older airframes. In a high-end conflict, those older aircraft would likely need to employ tactics similar to those Ukraine's air force is employing now with its Soviet-era fighter jets and its US-made F-16s.

Russia on Thursday rejected the idea of NATO countries sending peacekeeping troops to Ukraine in the event of a ceasefire in the war with Russia, saying such a move would threaten to cause an "uncontrollable escalation".

Any attempt to get Ukraine into Nato will run into a “buzz saw” in Washington unless Europe pays for it, a top diplomat for Donald Trump has said.

NATO Secretary-General Mark Rutte has warned that a Russian victory over Ukraine would undermine the dissuasive force of the world’s biggest military alliance and could cost trillions of dollars to restore the organization's credibility.

NATO Secretary General Mark Rutte reaffirmed on Thursday the need to step up support for Ukraine, adding it was vital Russia did not win as it could result in Russian President Vladimir Putin 'high fiving' the leaders of North Korea and China.

The 155th Mechanized Brigade was given French training and weaponry, but has been beset by scandal even before it deployed to the front lines.

The President’s various foreign-policy “personas” vacillate between a desire for domination and withdrawal.

Ukraine praised U.S. President Donald Trump on Thursday for threatening to impose tariffs and sanctions on Russia if it refuses to make a deal to end the war in Ukraine and said the comment sent a "strong signal".

Two generals and a colonel blamed for the loss of territory in eastern Ukraine to Russian forces last year have been held, the country’s security service said.

The future that Zelensky and many of his countrymen have in mind is one in which Russia is defeated. But in rallying the world to the fight, the implication Biden embedded in his own goals was that defending Ukraine against Russia is not the same as defeating Russia. So it is not surprising if that goal remains far from Zelensky’s reach.

Moscow responds to Trump ultimatum as 1,000 North Koreans killed in Kursk - Kremlin seeks to play down new Trump threat over war in Ukraine