By Andrius Sytas KANIUKAI, Lithuania (Reuters) - NATO has turned Vilnius into a fortress defended by advanced weaponry to protect U.S. President Joe Biden and other alliance leaders meeting next week only 32 km (20 miles) from Lithuania's razor-wire topped border fence with Russian ally Belarus. Sixteen NATO allies have sent a total of about 1,000 troops to safeguard the July 11-12 summit, which will take place only 151 km (94 miles) from Russia itself. Many are also providing advanced air defence systems which the Baltic states lack. "It would be more than irresponsible to have our sky unprot...
