Sharp fluctuations of major currencies inject new uncertainty into fraught global economic outlook. As the British pound plummets in value, the United States dollar is flying high. Against a tumultuous backdrop that includes the Ukraine war, soaring prices and China’s COVID lockdowns, sharp fluctuations of some of the world’s major …

Experts are not convinced the Russian leader would use nukes, but here are several possible scenarios that could unfold. President Vladimir Putin’s thinly veiled threat to use nuclear weapons in Ukraine if Russian “territorial integrity” is threatened has sparked deep discussion in the West as to how it would respond. …

Ruslan, a 41-year-old former sales manager who asked that his surname be withheld for security reasons, started learning the ropes of drone warfare in the immediate wake of Russia’s full-scale invasion of Ukraine in February. Ruslan’s unit of part-time reservists was near Kyiv’s Hostomel airport on the first day of …