Denmark is building a 43 mile wall on it’s border with Germany to help keep out swine flue and wild boars, the Associated Press reports:

Denmark has begun erecting a 70-kilometer (43.4-mile) fence along the German border to keep out wild boars in an attempt to prevent the spread of African swine fever, which could jeopardize the country’s valuable pork industry.

Work on the fence, which will be up to 1.5 meters (5 feet) tall, began Monday in Padborg, 220 kilometers (136 miles) southwest of Copenhagen.

It was authorized by Danish lawmakers in June after the government warned that Denmark’s pork exports to non-European Union countries — worth 11 billion kroner ($1.6 billion) annually — could be affected by African swine fever. In 2016, total Danish pork exports were worth about 30 billion kroner ($4.55 billion).

Unlike swine flu, African swine fever doesn’t affect humans but it can be deadly for domestic and wild boars, and cause massive losses for farmers.

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Critics say the 30 million-kroner ($4.6 million) fence will harm wildlife and is a symbolic gesture tackling a largely non-existent problem.

Danish officials have admitted that wild animals could, in theory, pass through the gaps in the fence where it crosses highways, roads and streams.

While this is not the same scenario as what’s happening on our Southern border it does show that walls do work to keep animals, or human beings out of your country, at least Denmark thinks so.

The Daily Mail has more on Denmark’s wall with Germany:

German news agency dpa reported that Jan Philipp Albrecht, the Agriculture Minister of the German state of Schleswig-Holstein, said the disease is ‘a serious threat for animals and the pig market.’

According to reports, however, he added: ‘We have significant doubts about the usefulness and necessity of a fence between Denmark and Schleswig-Holstein.’

The European statistical agency Eurostat said there are some 150 million pigs in the EU and 40 percent of them are in Spain and Germany, with significant numbers also in France, Denmark, the Netherlands and Poland.

Denmark is the only EU country where pigs outnumber people, with 215 pigs to every 100 residents.

US President Donald Trump made the idea of a solid wall between the American border with Mexico one of the key points during his presidential campaign in 2015.

‘I would build a great wall, and nobody builds walls better than me, believe me, and I’ll build them very inexpensively, I will build a great, great wall on our southern border,’ he said.

‘And I will have Mexico pay for that wall.’

Yesterday, Mr Trump tweeted: ‘Build a wall and crime will fall!’

So it would appear that at least some Europeans think walls do work.

Again, while this is not exactly the same as what’s happening in our country, it does make an excellent point about the utility and effectiveness of border walls.