Boom! Canada PM Justin Trudeau joins spoof Invictus rivalry

Canadian Prime Minister Justin Trudeau is the latest world leader to publicise the Invictus Games with a Twitter video in which he shows how his country "brings it".

The spoof spat started when President Obama and Michelle Obama told Prince Harry to "be careful what you wish for" in this Twitter video, external.

The Queen herself responded with a withering "oh really!" in the Royal family's video response.