Iran is facing international pressure over its nuclear program and assassinations of top officials. Meanwhile, its move to lift subsidies could stir public revolt.

Russia’s extraordinary show of force in and around Ukraine underscores the military imbalance between the two countries. 

Targeted operations by U.S. forces have eliminated notorious leaders of armed extremist groups, al-Qaeda’s Ayman al-Zawahiri the latest among them. But how much they disrupt these terrorist organizat…

Scientists say the rain forest is approaching a critical tipping point at which the damage is irreversible.

Corruption investigations that started in Brazil ultimately triggered political upheaval across the continent. But the Brazilian taskforce’s methods have been questioned, including over alleged bias…