Retired Admiral and former Supreme Commander of NATO James Stavridis joins Jonathan Capehart as the U.S. considers a deal with Warsaw to send their Soviet-era planes to aid Ukrainians' defense against Russia. Plus, amid threats from Russian President Vladimir Putin to view any country's declaration of a no-fly zone as "participation" in the conflict, what can the U.S. and NATO countries do to assist Ukraine?» Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc MSNBC delivers breaking news, in-depth analysis of politics headlines, as well as commentary and informed perspectives. Find video clips and segments from The Rachel Maddow Show, Morning Joe, Meet the Press Daily, The Beat with Ari Melber, Deadline: White House with Nicolle Wallace, The ReidOut, All In, Last Word, 11th Hour, and more. Connect with MSNBC Online Visit msnbc.com: http://on.msnbc.com/Readmsnbc Subscribe to MSNBC Newsletter: http://http://MSNBC.com/NewslettersYouTube Find MSNBC on Facebook: http://on.msnbc.com/Likemsnbc Follow MSNBC on Twitter: http://on.msnbc.com/Followmsnbc Follow MSNBC on Instagram: http://on.msnbc.com/Instamsnbc #Poland #USA #Russia #Ukraine U.S. In Talks with Poland To Send Soviet-Era Jets to Ukraine