A Ukrainian Patriot unit is breaking from traditional air defense doctrine to save interceptors. US Army photo by Sgt. David Rincon A Ukrainian Patriot unit commander said his crew is firing one interceptor per Russian missile. It's a break from standard Patriot air defense doctrine, which calls for at least two interceptors per missile. The shift in tactics could alleviate strain on Ukraine's low stockpile of Patriot interceptors. Ukrainian soldiers operating US-made Patriot air defense s...