Romania plays an often under-appreciated role as a bulwark for NATO on its eastern flank. I spoke with Black Sea security expert and George Washington University Professor Iulia Joja on June 14 about Romania's security challenges amid Russia's war on neighboring Ukraine. Among the topics covered were: traditional Romanian attitudes toward Russia; issues in Romanian-Ukrainian bilateral relations; the changing NATO and US military presence in Romania; the threat to Moldova from Russia; the centrality of Crimea to the future security of Ukraine; the "Bucharest 9"; and the outlook at the upcoming NATO summit in Vilnius for signals on future Ukrainian membership in NATO.