A year after Russia’s invasion, Ukraine is suffering a catastrophic humanitarian crisis. The outflow of millions of refugees has placed a strain on neighboring countries.

The main battle tanks that the United States and Germany have agreed to provide Ukraine will help its forces punch through Russian fortifications and retake lost territory.

Russia’s moves to mobilize thousands more troops and to annex more of Ukraine’s territory signal a new, potentially more dangerous phase of the war.

A devastating power crisis is plaguing South Africa, battering its economy and threatening to sink its climate goals amid the global race to renewables.

Russia’s aggression against Ukraine has brought European dependence on Russian energy into sharp relief and set off a scramble for alternatives.