Foreign affairs minister Julie Bishop has resigned from cabinet, but says she “will remain on the backbench as a strong voice for Western Australia”.

Bishop was deputy leader of the liberal party for 11 years and many colleagues have expressed their well-wishes to the former minister.

Shadow minister for foreign affairs Penny Wong, said Bishop played a “trailblazing role”, and education minister Simon Burmingham called Bishop “the most significant woman in the history of the Liberal party.”