The Swedish Civil Contingencies Agency (MSB) has urged the country's municipalities to prepare for war, another shocking indication of how mass immigration is threatening the stability of the European country.

"The agency sent official letters out to security heads in municipalities explaining that they must be better equipped to meet the threat of war and other crisis situations," reports The Local.

The warning is part of the country's plan to reintroduce a Cold War-era civil defense strategy. Sweden's military is overstretched, with the government considering bringing back compulsory military service.

"This places high demands on … operational tempo, decision making, information sharing, crisis communication, flexibility, robustness and managing secret information," states the letter.