“We discussed many ways to strengthen US-Ukraine cooperation on national security,” Bolton wrote on his Twitter page.

Great discussion with the Acting Head of The Security Service of Ukraine, Ivan Bakanov. We discussed various ways Ukraine and the US can strengthen collaboration across a wide range of national security activities.

- John Bolton (@AmbJohnBolton) August 28, 2019

He also added that the discussion was “excellent”.

August 27, Bolton arrived in Kiev, this visit was his first trip to Ukraine after the election of President Vladimir Zelensky.