Al-Shabaab remains capable of carrying out massive attacks in Somalia and nearby countries despite a long-running African Union offensive against the Islamist terrorist group.

Brazil has long sought a greater role on the world stage, but political upheaval and other enduring challenges have complicated its efforts.

The federal agency has a broad mandate to protect Americans’ health and an expansive global reach. But the COVID-19 pandemic has been one of its most daunting challenges.