President Zelenskyy of Ukraine has praised US President Joe Biden’s decision to support the training of Ukrainian pilots on US-made F-16 fighter jets, stating that it will “greatly enhance our army in the sky”. Zelenskyy has been calling for advanced fighter jets to support Ukraine’s defences against Russia’s invasion for months, but had faced rejection from Western allies who feared providing Ukraine with advanced offensive weapons could escalate the war in Europe. However, as Ukraine has improved its air defences with Western-supplied anti-aircraft systems and prepares to launch a counteroffensive against Russian forces, officials believe the fighter jets could become useful in Ukraine’s battle with Moscow and essential for the country’s long-term security. The UK, Netherlands, Belgium, and Denmark have all pledged to work together to provide Ukraine with the combat air capability it needs. Training on the fighters will take place in Europe and will require months to complete.