Nukes in Poland would be very bad to apocalyptic in the event of a war, but also it’s just passively dangerous; between 1950 and 1980, the US military reported 32 accidents involving nuclear bombs, including 8 whose cores were not recovered. After which they stopped reporting them. The USSR/Russia’s record is not significantly better.

That count does not include logistics mishaps, such as in 2007 when 6 nuclear bombs were mistakenly flown across the country and left attached to an unattended aircraft for 36 hours, at which point somebody asked why they had nuclear bombs just hanging off that plane without any guards or anything. No, this was not discovered because someone noticed their nukes were missing for a day and a half, this was discovered when someone stumbled across them.