Russian whistle blower warns EU and U.S. that Moscow is planning a strike in Poland to test the NATO response before Christmas.

The search results from multiple reputable news outlets such as The Moscow Times, The Guardian, BBC, NBC News, and others document recent Russian drone incursions into Polish airspace and describe these as tests or provocations aimed at gauging NATO's reaction. These incidents have led to heightened NATO defenses and political responses but are reported as ongoing tensions rather than explicit planned strikes.

None of the sources mention any whistleblower claims or warnings specifically about a planned strike in Poland before Christmas. The closest related information involves Russia's use of drones to probe NATO's red lines and Poland's engagement with these incursions, but no direct intelligence or whistleblower revelations about a future strike were found.

Additionally, some sources discuss disinformation campaigns and propaganda but do not confirm any imminent attack plans. A Reddit geopolitics discussion mentions speculative analysis about Russia testing Article 5 but does not provide verified intelligence or whistleblower testimony.

Therefore, the claim that a Russian whistleblower has warned the EU and U.S. About a planned strike remains unsubstantiated based on current publicly available information.