US President Barack Obama and Secretary of State Hillary Clinton have sent Australia best wishes for Australia Day.
Mrs Clinton says America stands with Australia as a committed friend and partner as the countries work to advance freedom, democracy and prosperity in the Asia-Pacific and beyond.
"On behalf of President Obama and the people of the United States, I am delighted to send best wishes to the Australian people as you celebrate Australia Day this January 26," Mrs Clinton said in a statement on Thursday.
"During my recent visit to Australia, I was reminded of the strong bonds that unite our two countries.
"We are cooperating on more issues than ever before, from strengthening security to space exploration, from expanding educational exchanges to increasing trade and commerce.
"We are also working tirelessly to advance the causes of freedom, democracy and prosperity in the Asia-Pacific and across the globe. All of this is reinforced by the ties of family, friends, values and principles.
"As you celebrate your national day with loved ones, know that the United States stands with you as a committed partner and friend.
"I wish all Australians a safe and happy holiday celebration and continued peace and prosperity in the coming year."