- Summary- Hiked preparedness seen lasting a year, could be longer- Norway is now Europe's largest gas supplier- Shares a border with Russia in the ArcticOSLO, Oct 31 (Reuters) - Norway will put its military on a raised level of alert from Tuesday, moving more personnel on to operational duties and enhancing the role of a rapid mobilisation force in response to the war in Ukraine, the government said on Monday.Norway will also seek to bring its new fleet of U.S.-made P-8 Poseidon submarine-hunting maritime patrol aircraft into regular operation at a faster pace than originally planned, the chief of defence, General Eirik Kristoffersen, said.There were no concrete threats against Norway now triggering the decision, Kristoffersen told Reuters, but rather the sum of "the uncertainties" was leading authorities to raise the country's military preparedness.OFFSHORE PLATFORMSNorway first deployed its military to guard offshore platforms and onshore facilities after leaks on the Nord Stream pipelines on Sept. 26 in Swedish and Danish waters and has received support from British, Dutch, French and German armed forces."The continuation of the war in Ukraine, Russia's attempts at weakening (international) support for Ukraine mean that all countries in Europe must consider that they are exposed to hybrid threats."