U.S. President Donald Trump on Monday said Defense Secretary Mark Esper had been "terminated" and that Christopher Miller, director of the National Counterterrorism Center, will be acting Secretary of Defense starting immediately. "Mark Esper has been terminated," Trump said on...

 China and Russia held off congratulating U.S. President-elect Joe Biden on Monday, with Beijing saying it would follow usual custom in its response and the Kremlin noting incumbent Donald Trump’s vow to pursue legal challenges. Democrat Biden clinched enough states to win the...

Pfizer Inc's experimental COVID-19 vaccine was more than 90% effective based on initial trial results, the company said on Monday, a major victory in the fight against a pandemic that has killed over a million people and battered the world's economy. Experts welcomed the first successful...

US President-elect Joe Biden Monday hailed as a cause for "hope" the news that a Covid-19 vaccine developed by Pfizer and BioNTech was 90 percent effective -- but warned of a long battle still ahead. "I congratulate the brilliant women and men who helped produce this breakthrough and to...