 U.S. does not allow Ukrainian pilots to train on F-16 in Europe. The United States does not allow Ukrainian pilots to begin training on F-16 fighter jets in Europe, despite the readiness of several countries to conduct such training. The New York Times wrote with reference to an unnamed Ukrainian official. The official noted that without U.S. permission, Ukrainian pilots can only be familiarized with the technical language and conduct tactical lessons. Test flights on the F-16 are not possible. According to the New York Times, President Joe Biden's administration, which must approve the transfer of any American-made aircraft, is still not convinced that Ukraine needs expensive fighter jets. A senior U.S. official said the White House opposes F-16 deliveries to Ukraine because the fighter is too expensive. As a result, a very large share of the budget for supporting Ukraine may go to the sending of these fighters. Instead, the U.S. administration is going to focus on supplying other weapons. At the same time, the source did not rule out that Biden's administration may allow European countries to transfer their F-16s to Ukraine. On 17 May, following the results of a meeting on the sidelines of the Council of Europe Summit in Reykjavik, the prime ministers of the U.K. and the Netherlands agreed to lead a coalition of fighter jets to provide Ukraine with F-16s. President Zelensky announced that the U.K. and the Netherlands, as well as France, had joined the so-called coalition of fighter jets.