In the United States there is a debate raging over security on the southern border. While Australia doesn’t have to worry about illegal immigrants crossing into their country--largely due to the fact that Australia is an island with no neighboring countries—they have issues with other intruders who are bent on destroying the nation’s natural resources.
In 1907, Australia completed a 2023 mile fence in order to keep out hungry rabbits and other agricultural pests, such as foxes, dingos and of course kangaroos.
The massive fence spans the entire western section of the country and still stands to this day.
While, the nation has since found other more modern means to keep the rabbits out of the agricultural parts of the country, it still plays a key role in protecting the nation from agricultural devastation.
The fence is wire mesh and extends six inches underground to keep hungry critters from burrowing underneath.