In his remarks, Kosiniak-Kamysz revealed that Poland could consider renouncing the Ottawa Convention, which aims at eliminating the use of anti-personnel landmines. But he added that “the arming of minefields will only take place when we are sure that war is inevitable”, reports broadcaster TVP.

Hmm. It might be possible to use mines that self-disarm. That addresses much of the UXO concerns, while still permitting for defensive use.