Nine charts illustrate the extraordinary level of support the United States has provided Ukraine in its war against Russian invaders.

Drone technology has been used extensively in twenty-first-century armed conflict, but the Russia-Ukraine war is driving innovations in autonomous warfare not seen on other battlefields.  

Atmospheric rivers are gaining in intensity across California and the western United States. Communities need to adapt to the havoc wrought by this weather phenomenon.

See how six countries are faring amid efforts to protect 30 percent of the planet’s land and waters by 2030, and what will be saved if they succeed. 

The most popular historical analogy for current American troubles is the Civil War era. The second most popular is the Gilded Age. But where the 1850s do not meaningfully resemble today, the 1890s ce…

Japan’s new national security strategy and related defense plans herald a major military modernization effort in response to perceived threats in Northeast Asia, particularly China.