Welcome to The Adversarial. Every other week, we’ll provide you with expert analysis on America’s greatest challengers: China, Russia, Iran, North Korea, and jihadists. Read more below. *** Russia Russia’s advance in Ukraine slowed down in March 2025. However, Russia made gains in retaking land in the Kursk region — Ukrainian forces now hold up to 30 percent of the estimated 500 square miles of land they originally seized in 2024. Russian President Vladimir Putin boasted that Russia’s troops