A Toronto-area Liberal M-P has crossed the floor to join the Conservatives.

Leona Alleslev says the world has changed dramatically in the past three years, and Canada faces a perfect storm of political challenges at home and abroad.

The first-term M-P says she cannot challenge the government openly as a Liberal, because to do so would undermine the government and violate her personal code of conduct.

Conservative Leader Andrew Scheer says he welcomes Alleslev and her years of experience in the Canadian Armed Forces and within the private sector.

(The Canadian Press)