And it will extend on and on into the future indefinitely. These checks at the Austrian border are reality checks, you see.

Germany will extend temporary controls at its border with Austria for six months due to concerns the EU’s external frontiers are not sufficiently protected, the interior ministry said on Friday.

Germany coordinated the decision with Austria, Denmark, Sweden and Norway, a ministry spokeswoman said. The Danish government made a similar announcement on Friday, citing the threat of terrorism.

Germany and other countries in Europe’s normally controls-free Schengen zone introduced emergency border controls in 2015 after more than 1 million refugees and migrants entered Europe.