Boris Johnson has failed to guarantee troop numbers will be spared cuts as he unveiled a major review of Britain’s foreign policy. The Prime Minister was pressed by Labour to explain whether the number of frontline personnel will fall, amid reports the Army could reduce by 10,000 in the coming years. After Conservative Richard Drax (South Dorset) suggested boosting the Army’s regular force beyond 100,000, Mr Johnson said the combined strength including reservists will remain above 100,000 but “tough decisions” will be required. In 2015, the then government’s review committed to main...