Two years ago, while Mayor of London, Mr Johnson criticised the BDS movement describing the campaign as “completely crazy” and promoted by a “few lefty academics” in corduroy jackets pursuing a cause.
His colourful denunciation of boycotts was applauded by Israel’s supporters but led to the cancellation of meetings in the West Bank.
In January Mr Johnson spoke out against a call for disciplinary action against the Israeli embassy in London following the airing of controversial Al Jazeera documentary, The Lobby.
He also defended the UK’s support for the UN resolution condemning Israeli settlements.
Mr Johnson said the UK had been closely involved in drafting the language of the resolution, ensuring it contained words condemning “the infamy of terrorism that Israel suffered every day”.