The world this year is observing 100 years of the end of the First World War, which was virtually unprecedented in the slaughter, carnage, and destruction it caused.

Belligerent nationalism led to WW1, essential to learn from that: Professor Santanu Das to WION

Russian President Vladimir Putin said on Sunday he had a brief but good conversation with US leader Donald Trump at World War I centenary events in Paris, Russian media reported.

Had good conversation with Trump in Paris: Vladimir Putin

Vladimir Putin will speak "briefly" with Donald Trump when the two presidents meet in Paris this weekend for World War I centenary events, an advisor for the Russian leader said Wednesday.

Putin, Trump to speak 'briefly' in Paris this weekend: Kremlin