Trump's all-caps diplomacy: Tensions rise in war of words with Iran's Rouhani
US President Donald Trump on Sunday tweeted a strongly-worded warning to his Iranian counterpart, Hassan Rouhani. Earlier on Sunday, the Iranian leader had warned Trump to stop "playing with the lion's tail" and threatening Iran, "or else you will regret it". Where might this diplomatic spiralling between Washington and Tehran lead? The "mother of all peace" or the "mother of all wars"?
Produced by Charles WENTE, Alessandro XENOS, Laure FOURQUET.