Ukraine. Russia. Israel. Lebanon. Hamas. Syria. Iran. North and South Korea. Taiwan.

Jamie Dimon thinks World War 3 has already started: “World War III has already begun. You already have battles on the ground being coordinated in multiple countries,” Dimon said.

As the world edges closer to potential large-scale conflict, the looming shadow of World War 3 presents challenges that few cities have fully prepared for. Global tensions are no longer distant concerns confined to international diplomacy; they manifest in local economies, disrupt lives, and profoundly reshape communities. While national governments manage geopolitical strategies, cities bear the brunt of the cascading effects. The potential of supply chain breakdowns, energy crises, and demographic shifts. Preparing for these impacts is no longer a theoretical exercise but a matter of survival.

History has taught us that the most resilient cities are those that plan for the unexpected. Whether it was London enduring the Blitz or New York recovering from 9/11, the key to enduring crises has always been local leadership that understands the interconnectedness of infrastructure, economy, and community. Resilience in the face of a global conflict demands a proactive approach, one that anticipates challenges and responds with clarity and determination.

Economic resilience is the foundation of any city’s survival during times of upheaval. This resilience does not emerge from isolated policies or grand statements of intent. It is built through concrete actions such as securing critical infrastructure, ensuring the continuity of local businesses, and protecting vulnerable populations. A resilient city is one where local government collaborates with businesses, nonprofits, and residents to create a framework capable of adapting to the most severe disruptions.

Imagine the paralysis of essential goods delivery if global supply chains collapse. Picture the impact of soaring energy prices on families and businesses or the strain on housing and healthcare systems as refugees seek safety within your borders. The ripple effects of a global conflict would touch every aspect of life. Even the strongest economies could falter without preparation, leaving cities to scramble for solutions amidst chaos.

To build resilience, cities must first understand their vulnerabilities. This requires an honest assessment of critical infrastructure. Which systems are most at risk? Energy grids, transportation networks, or water supplies? Leaders must also look inward at their economic foundations. Can local businesses withstand prolonged uncertainty? Is there flexibility in the workforce to adapt to shifting industry demands? These questions cannot remain unanswered.

Investing in local manufacturing and supply chains offers one path forward. Cities that rely on distant resources for essentials like food, medicine, or energy will be disadvantaged in the face of global disruptions. Developing local production capabilities not only ensures a measure of independence but also fosters economic stability by creating jobs and supporting small businesses. The potential for the dual benefits of economic and security makes this a cornerstone of preparedness.

Equally critical is a community’s social fabric. The best-laid plans will fail without trust between leaders and residents. Engaging the community in resilience efforts, whether through town halls, partnerships with civic organizations, or transparent communication, builds a foundation of collaboration. People are more likely to rally behind initiatives when they see their voices reflected in decisions. In times of crisis, a united city is a stronger city.

Looking beyond immediate needs, cities must also envision the long-term recovery process. A crisis like World War 3 does not simply end when the conflict subsides. The aftermath will demand a new kind of leadership that balances rebuilding with a forward-thinking vision. Investments in resilience-related industries like renewable energy and technology will set the stage for post-crisis growth. At the same time, leaders must nurture the qualities that make their communities desirable places to live and work, including a strong sense of identity and quality of life.

Preparing for a crisis may seem daunting, but the cost of inaction is far greater. Resilience is not just about surviving; it is about positioning a city to thrive despite the odds. Every city has a role to play in this uncertain future. Leadership grounded in action, collaboration, and foresight will define the cities that emerge not just intact but stronger.

Tomorrow, we will explore the backbone of resilience: critical infrastructure. From energy grids to transportation networks, we will discuss the systems that cities must fortify to withstand the unpredictable shocks of a global conflict. For now, remember that preparation begins not with fear, but with resolve.