During the opening of the NATO summit in Washington, US President Joe Biden announced the transfer of an additional Patriot system to Ukraine and also announced other deliveries to strengthen the country's air defense, Voice of America has reported.In particular, Biden said that Patriot SAMs will be provided: one from the United States, two from Germany and Romania, and one more the Netherlands will assemble together with other partners. In turn, Italy will transfer the SAMP-T system to Ukraine.He also noted that the United States, together with its partners, is working on providing Ukraine with dozens of additional strategic air defense systems this year. In addition, Biden noted that the United States will redirect to Ukraine over the next year interceptors that were scheduled for delivery to other countries.He noted that the United States is supporting Ukraine in partnership with NATO members and a coalition of more than 50 countries."Our message to Moscow and the world is clear: our support for Ukraine is strong and unwavering," Biden said.He also said Russia was losing this war as the Russian Federation was losing men on the frontline, Russians were leaving the country and Ukraine remained "free and independent"․"Ukraine can and must stop Putin," Biden said in his speech.