The European Union is urging citizens across the continent to stockpile food, water and other essentials to last at least 72 hours as war, cyberattacks, climate change and disease increase the chances of a crisis.

BRUSSELS (AP) — The European Union on Wednesday urged citizens across the continent to stockpile food, water and other essentials to last at least 72 hours as war, cyberattacks, climate change and disease increase the chances of a crisis.

The call to action for the EU’s 450 million citizens comes as the 27-nation bloc rethinks its security, especially after the Trump administration warned that Europe must take more responsibility for it.