“Biden has given a green light and we will allow, permit, support, facilitate and in fact provide the necessary tools for Ukrainians to begin being trained on F-16s, as soon as the Europeans are prepared,” national security adviser Jake Sullivan said. https://edition.cnn.com/2023/07/16/politics/us-ukraine-f16-jake-sullivan-cnntv/index.html#:~:text=%E2%80%9CThe%20president%20has%20given%20a,%E2%80%9CState%20of%20the%20Union.%E2%80%9D