When Finance Becomes a Weapon

Sanctions as Strategy: When Finance Becomes a Weapon Over the past decade, financial sanctions have evolved from blunt trade restrictions into precise instruments of geopolitical power. Today, access to banking systems, payment rails, and global markets can be cut off overnight—reshaping economies without a single shot fired.What was once an exceptional measure is now a core pillar of foreign policy. From asset freezes and SWIFT exclusions to secondary sanctions, financial infrastructure has become a battlefield, with ripple effects felt far beyond targeted nations.In this week’s StayWired, we examine how sanctions work, why they’ve expanded so rapidly, and what their growing use means for global finance, trade, and the future of money.