 When Americans talk about national security, most of the time we mean war. In almost 250 years, the United States has never had a decade without a battle, from Bunker Hill to Baghdad. But in the 21st century, national security is not just about war as we've known it. Technology is disrupting the way we fight. The strategic landscape is shifting under our feet. And today, more Americans are dying from COVID-19 that have fallen in any foreign war. This is a preview of how climate change and biodiversity loss will challenge the peace. They, like the pandemic, will raise the heat on places already simmering with broken governments and heavy historical legacies, which in turn inflames inequality, poverty, and resentment. That means more people on the move looking for jobs or safety. It means more suffering, more friction and hostility, maybe even more conflict. As we're seeing now, the world's great powers are by no means immune. For all countries in a changing climate, there will be more disasters that threaten health, food, water, and energy. There will be different winners and losers as the demands on natural resources shift, from where certain crops will grow to who has the critical minerals the whole world needs for everything from clean energy to smartphones. The United States needs a new approach. It's time to build security, not just fight battles. Learn more at newamerica.org slash resource dash security.