US President Donald Trump hailed the "cherished bond" between the United States and the United Kingdom.
The nationalist group has been escalating threats, nearly 30 years after a peace deal largely ended sectarian violence.
US lawmakers gave King Charles III a standing ovation upon mentioning the importance of “checks and balances”.
Aid agencies warn that time is running out to avoid an 'irreversible humanitarian catastrophe'.
US president says German chancellor 'doesn't know what he's talking about', defends war on Iran as necessary.
Under law, Trump needs Congressional approval to continue war, experts say, but Congress may avoid the issue altogether.
Video captured massive explosions in southern Lebanon in what the Israeli military called strikes on a Hezbollah tunnel.
The United Nations chief warns of the waning influence of the global agreement.
Families in Sudan face hunger and displacement during war with millions dependent on limited and inconsistent aid.
The gunman's motive remains unclear.