Iranian support has boosted the military prowess of Yemen’s Houthis, helping them project force into the Red Sea. In return, the group has extended the reach of Iran’s anti-West axis of resistance.

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

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…

A surge in killings of environmentalists is part of a disturbing trend of increasing threats to social leaders across Latin America.