The announcement came after nine nations along NATO's eastern flank called Friday for the alliance to bolster its presence in their region.
Since last year, 330 US Marines have been deployed on rotation at Vaernes in the centre of Norway, despite loud protests from Russia.
The US deployment agreement would also be extended from the current six-month renewable periods to five years.
"For this support to work in times of crises and war, we are are totally dependent on joint training and exercises in times of peace," he added.
Bulgaria, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Romania and Slovakia had Friday called for NATO to discuss an increased military presence in their region at next month's leaders' summit in Brussels.
The group said it was necessary to supplement NATO's current ground forces "with aerial and naval components" NATO beefed up defences in central and eastern Europe in response to growing fears about Russia, following Moscow's annexation of Crimea in 2014.
"But we can't see any serious reason why Russia should react, even if we expect it will again this time since it always does about the allied exercises and training." To ease Moscow's concerns, before becoming a founder member of NATO in 1949, Oslo gave a commitment not to station foreign troops on its soil unless it was under threat of attack.
The government says it still follows that commitment noting that the troop presence is not permanent but rotational.
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