US President Donald Trump made an announcement at a NATO summit in Turkey regarding Ukraine's defense capabilities. The US will grant Ukraine a license to produce Patriot air defense systems, which will help counter missile attacks from Russia.

This decision is seen as a significant development for Ukraine, which has been requesting the technology for some time. The move marks a shift in the US stance on foreign manufacture of Patriots, which was previously resisted.

Further details on this announcement are available from the source, including the context of the NATO summit and President Trump's discussions with European partners.