NATO does not anticipate imminent conflict with Russia.

NATO exercises, especially on this scale, are planned years in advance and serve the dual purpose of refining defense plans as well as acting as a deterrent against potential aggression from near-peer adversaries.

https://www.act.nato.int/article/steadfast-defender-2024-signals-alliance-unity-and-preparedness/

https://www.defense.gov/Spotlights/Steadfast-Defender-24/