Russia’s Nord Stream 1 and 2 pipelines ruptured on September 26, draining gas into the Baltic Sea off the coast of Denmark and Sweden. Seismologists recorded explosions in the area and police in several countries have launched investigations. Norway, Europe’s biggest supplier of natural gas and a major oil exporter, last week deployed its navy and air force to patrol offshore oil fields and announced it would get help from Britain, Germany and France to do so . At the request of Norwegian police, the Norwegian Home Guard, a rapid mobilization force, on Monday began deploying troops to factories responsible for processing and exporting oil and natural gas. Although the Norwegian government said it was not aware of any specific threats to oil and gas infrastructure, it thought it prudent to beef up security and tried to allay workers’ concerns.