US President Donald Trump issued a message on the occasion of OXI Day, which you can read here-
"The United States has been a stalwart ally and supporter of Greece since its independence in 1821. The U.S. and Greece have fought side by side in defense of freedom and liberty in multiple wars against tyranny and communism, including World War I, World War II, and the Cold War.
OXI (“No”) Day commemorates this day in 1940 when the Greek government answered “No” to a request by the Axis Powers to occupy Greece. Greece’s heroic determination to fight for liberty culminated in Greece's defeat of Mussolini in World War II - the first Allied victory against the Axis Powers. Greece’s victory provided a symbol of hope throughout occupied Europe and around the world. Today, America celebrates its historic, reliable and strategic alliance with Greece and all her citizens."
It is recalled last month the U.S. President Donald Trump had two phone conversations with Greek Prime Minister Kyriakos Mitsotakis.