Jessika Roswall cites Poland and Finland, which have made border areas near Russia or its allies ‘more hostile’ to cross

Countries should look to rewild their land borders as a deterrence to invasion and build up other geographical defences to attack, Europe’s environment chief has said.

Jessika Roswall, the EU’s commissioner for the environment, water resilience and a competitive circular economy, said nature should be used to improve national security. “Investing in nature and using nature as a natural border control is necessary, and actually increases biodiversity. It’s a win-win,” she said.