Belarus detains two over alleged Zapad 2025 documents

What did Belarus say it had found on 4 September 2025? Authorities in Minsk detained a Polish national and a Belarusian citizen on espionage charges, alleging that the two possessed documents on Zapad 2025.

The case fell within the field of Belarus–Poland relations, and the nationality of one of the detainees gave it a bilateral dimension. Belarus tied the charges directly to material about the Zapad 2025 exercise, rather than to any other activity.

What the case showed

The arrests linked a security allegation to a specific military event. The detention of a foreign national alongside a Belarusian citizen placed the matter in the sphere of state security, where Belarusian authorities were the ones making the allegations.

The account that day rested on the charges and the claim about the documents. Nothing further about the identities of the detainees, the content of the papers or the evidence was set out, and any wider consequences for ties between Minsk and Warsaw lay beyond that day.