Ambassador Paula J. Dobriansky, Senior Fellow in the Future of Diplomacy Project is quoted about President Joe Biden's visit to Ukraine to mark the one year anniversary of Russia's illegal, unprovoked, brutal invasion. “The visit of the US President Joe Biden at such a key moment is a chance for Poland and the region to demonstrate leadership,” Paula Dobriansky, a former US undersecretary of state and foreign policy expert, told the PAP news agency on Monday.