Ahead of Greek Independence Day celebrations at the White House on Friday, U.S. Vice President Joe Biden spoke via phone to Greek Prime Minister Antonis Samaras to reaffirm his support for that country''''s move toward "economic growth and prosperity." According to a readout of the call, Biden congratulated Samaras and "expressed appreciation for the valuable role Greece continues to play as a strategic partner and NATO ally." He also "welcomed Greece''''s continued economic progress as the government carries out its reforms, and pledged enduring U.S. support" to assist the country''''s financial system. Transatlantic cooperation and energy security were also discussed. The two leaders expressed their backing for Ukraine, "including support for the upcoming May elections and the need to stand united against Russian aggression." Biden concluded by expressing "appreciation to Greece for its support for a just and lasting settlement that reunites Cyprus as a bi-zonal, bi-communal federation."