The US has prepared for a war against Russia since year 2000. // NATO exercise Trident Juncture is a move from theory to practice.
Trident Juncture exercise is related to NATO’s and its allies ambitions to prevent Russia from utilising the Northeast passage.
No evidence given. Recurring pro-Kremlin disinformation about NATO's Trident Juncture exercise and the Arctic.
Trident Juncture 2018 was a large NATO exercise held in Norway with around 50,000 participants from 30 NATO and partner countries. forsvaret.no/en/exercise-and-operations/exercises/nato-exercise-2018,
NATO is a defensive alliance, whose purpose is to protect the member states. The Alliance poses no threat to any country and does not see an immediate military threat against any NATO ally.
For background on NATO-Russia relations see here.