Arti BaliNew Delhi, Nov. 21 -- As conflicts deepen and global power centers shift, the international system is entering one of its most volatile periods in decades. The war in Ukraine is grinding into its third year with no end in sight, while Israel's conflict with Hamas has thrown the Middle East into renewed turmoil. Across Europe, governments are scrambling to fortify their defenses, and Russia is signaling a return to Cold War-era military competition with tests of new strategic weapons.
Against this backdrop, the United States is revisiting debates that once seemed relegated to history. President Donald Trump has directed the Department of War to prepare for the possibility of resuming U.S. nuclear testing-a step that would overturn ...