Loose cannon or influential statesman — what kind of British prime minister would Boris Johnson make on the world stage? Judging by his time as foreign secretary, possibly both.

When Johnson was given the foreign job in 2016, after Britain voted to leave the EU, he was viewed as an unlikely choice by politicians and public alike given his tendency to court controversy with gaffes, oddball jokes and off-the-cuff remarks.

The early days seemed to confirm the worst fears of those who saw the Conservative lawmaker as an unsuitable diplomat, at a critical time when Britain needed to forge new political and commercial ties with a slew of countries.