Trump taps national security adviser Waltz as UN ambassador...
Zelenskyy hails Ukraine-US investment deal as 'truly equal'...
Nigeria state leaders demand action against Islamist attacks...
US National Security Advisor Waltz reportedly leaving post...
US National Security Advisor Waltz reportedly leaving post...
Oman says new Iran-US nuclear talks postponed...
Oman says new Iran-US nuclear talks postponed...
Why EU, US companies are keeping trademark rights in Russia...
Germany updates: Thousands rally in Berlin for Labor Day...
Germany updates: Thousands rally in Berlin for Labor Day...