India, Feb. 14 -- US President Donald Trump boasted Friday about a secret "discombobulator" weapon that can block Russian and Chinese defence systems, as he met the elite troops, who captured Venezuelan leader Nicolas Maduro, at Fort Bragg.

Trump's comments at the military base in North Carolina are the first time that the Republican leader has talked about the mysterious device at a public event, after previously letting some details slip in interviews.

"They even talk about the discombobulator, because they never got a shot off. The Russian equipment didn't work. The Chinese equipment didn't work. Everyone's trying to figure out why it didn't work. Someday you're going to find out, but it didn't work," Trump told soldiers at the base,...