Boris Johnson, the popular and flamboyant ex-mayor of London, was on Wednesday appointed Foreign Secretary by new British Prime Minister Theresa May.

Well-known for his provocative newspaper columns and undiplomatic language, below are some of Johnson's blunt opinions:

It'll be very interesting to see how these leaders would respond, when they come face-to-face with Boris Johnson.

(All images designed by Rohit Jakhu)

(With inputs from Reuters)