no it does not. People come and go as they please. Very nice country
South Australia's land border is 3 185 km long.
Not in land border but in water border, yes.
New South Wales has the longest land border, which is 4635 km long. it shars its border with Victoria to the south, South Australia to the west, and Queensland to the north.
Australia is an island continent. It is surrounded by sea, so doesn't share a land border with anyone.
Australia is the continent with the shortest land border, as it is completely surrounded by water with no land connections to other continents.
Asia
No. Australia has no land borders with any other continent.
The question does not make sense. All of the states of Australia share a border with another state. Even Tasmania, the island state, shares an actual land border as well as a water border with another state.
The Australian state with the longest border is Western Australia, which shares extensive borders with the Northern Territory and South Australia. Western Australia's border measures approximately 3,400 kilometers. Australia's total land border length is around 8,000 kilometers, so Western Australia's border represents about 42.5% of the country's total border length.
Australia shares no land border with any other country. It is surrounded entirely by oceans and seas.
There have always been land disputes in Europe.
These border disputes become more costly each day.