The US is described as Australia's most important ally but President Joe Biden has not handed Canberra a single Covid-19 vaccine, forcing Scott Morrison to go cap in hand to other friendly nations including Singapore and Poland.
The Prime Minister has been scrambling to secure extra Pfizer doses from allies around the world after only initially ordering 10million doses in November last year.
Daily Mail Australia understands the Federal Government is hoping to clinch a third international vaccine deal this week but Mr Morrison is not expecting any supply from the Biden administration.
The US is often described as Australia's most important ally but President Joe Biden has not handed Canberra a single Covid-19 vaccine. Pictured: UK PM Boris Johnson, Scott Morrison and US President Joe Biden at the G7 summit in the UK in JuneInsurance Loans Mortgage Attorney Credit Lawyer
Australians are keen to get vaccinated but supply of the Pfizer jab is tight. Pictured: Residents arrive at the Qudos Bank Arena vaccination centre in Sydney on Friday
The US - the world's biggest vaccine donor - has snubbed Australia's requests even though Aussie troops fought alongside their American allies in every major conflict since the First World War including in Korea, Vietnam and Afghanistan.
President Biden only last night hailed the 'unsurpassed partnership' between Australia and the US on the 70th anniversary of the ANZUS treaty which cemented an alliance between the US, Australia and New Zealand in 1951.
'Australian friends stood with us at that darkest hour just as our two nations stood shoulder to shoulder in every major conflict since World War I,' he said in reference to the 9/11 terror attack.
But Australia has been left without American help in its latest hour of need as 14million Aussies endure crippling Covid-19 lockdowns with vaccination the only path out.
One source said the Biden administration has not been receptive to Australia's pleas for help because 'we don't have legions of people dying'.
Only 112 Australians have died since the outbreak of the Delta strain began on June 15. In the same timeframe about 41,000 Americans, 5,000 Britons and hundreds of thousands in developing nations have lost their lives with the disease.
Australia has fought alongside the US in every major war since WWI. Pictured: A ceremony marking the start of Talisman Saber 2017, a biennial joint military exercise between the United States and Australia aboard the USS Bonhomme Richard amphibious assault ship off SydneyInsurance Loans Mortgage Attorney Credit Lawyer
President Biden has already donated more than 110million vaccines around the world - including 2.5million to Canada and 3.5million to Argentina - but his focus is on saving lives, protecting America's neighbours and assisting poor countries, meaning wealthy Australia is way down his donation list.
This is despite calls from leading political opponents including Michael McCaul, the senior Republican on the House foreign affairs committee, and Mike Gallagher, the Republican co-chairman of the Friends of Australia congressional caucus, who want to supply vaccines to Australia.
In early August The Australian newspaper reported that a 26million vaccines were about to expire in the US but President Biden refused to send them Down Under.
Australian soldier Bull Allen, a brave stretcher-bearer who earned the United States' Silver Star for rescuing countless Allied troops during the Second World War, carries an American ally in New Guinea
'The United States has vaccine doses set to expire at the same time our Australian mates need extra doses,' Mr Gallagher said at the time.
'The Biden administration should be doing everything in its power to get these doses to