Pakistan's defence minister declares "open war" against Taliban after Islamabad says two of its soldiers were killed.
The BBC's State Department correspondent and Washington correspondent explain how the president is justifying the action and assess the risks ahead.
US President Donald Trump has called for regime change in Iran and said "major combat operations" are under way.
After months of heated wrangling, Paramount has emerged the apparent victor in its bid to acquire storied Hollywood rival Warner Bros. Discovery.
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