None. Australia's nearest continents are Asia and Antarctica. Australia is both a country and an entire continent on its own. It is surrounded by ocean on all sides, and is sometimes called the 'island continent.'
Australia does NOT share a border with Iraq.
Japan, Australia, and Argentina are examples of countries that do not share a border with Syria.
Indonesia and Australia
Antarctica, Asia, Africa, and Australia border the Indian ocean.
No countries physically border Australia, but some of the closest countries to Australia are Indonesia, East Timor, Papua New Guinea and New Zealand.
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There are no countries that directly border Australia, seeing as it is a continent. However, off the southeast coast you can find New Zealand, and that is it. In other words, one.
Australia shares no land border with any other country. It is surrounded entirely by oceans and seas.
All countries share borders, although these may not always be land borders. Australia, for example, shares no land borders with any other country, but it does have maritime borders with other countries.
Tasmania has no border with South Australia.
When countries share a border it is referred to as a "common or shared" border.
Australia, Antarctica, Peru and the United Kingdom are just a few of the countries that do not border the Mediterranean Sea.For your information there is no such thing as the "meridian" sea.