The Head of the Office of the President of Ukraine, Andriy Yermak, held a telephone conversation with the National Security Advisor to the President of the United States, Jake Sullivan. The parties agreed to strengthen Ukrainian air defense, according to Andriy Yermak’s Telegram channel. During the conversation, the leaders discussed the consequences of the recent extensive shelling of Ukrainian territory by the Russian Federation, involving various types of missile weaponry and kamikaze drones such as the Shahed. “I informed about the results of the Ukrainian air defense forces, which success…