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

With France raising taxes on big tech firms, Washington says American companies are being unfairly targeted.

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

Russia has demanded security guarantees that U.S. and NATO officials cannot accept, but there could still be room for building a sustainable dialogue on European security.

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…