The new U.S. aid package will reestablish a critical flow of weapons to Ukraine’s military, but the war will hinge greatly on which side can ramp up and sustain its firepower and troop numbers in the…

The advanced U.S. fighter aircraft will mark a significant upgrade to Ukraine’s air force, but their impact on the war with Russia will hinge on several factors.

Governments and companies are embracing new emissions-reducing technologies that pull carbon dioxide out of the atmosphere. But it is uncertain whether this can work at the scale and in the time nece…

The death toll from the Israel-Hamas war continues to mount, with no lasting settlement in sight. Meanwhile, concerns about humanitarian catastrophe and regional violence are spreading.

The country’s steady military and technological progress, coupled with its leader Kim Jong Un’s increased hostility toward foreign influences, raises concern about Pyongyang’s ambitions. Here’s a bre…

Reports that China has stepped up efforts to gain influence in foreign political systems have sparked concern in Australia, New Zealand, and other states amid signs that the campaign may be shaping d…