I am so proud of the values that have made our country so great. Democracy, human rights, the rule of law. But the sad truth is that in recent years, our governments under the old parties have let those values down.

We shouldn't have sent soldiers into battle without the right equipment. We shouldn't be facing allegations of complicity in torture, we shouldn't have invaded Iraq.

So I want us to lead in the world. I want us to lead in Europe, not complain from the sidelines. I want us to lead in creating a world free of nuclear weapons. And I want us to lead on the biggest challenge of all, climate change.

My family knows what British values really mean. My mother was freed by British troops from a prisoner of war camp. And I think, if we do things differently, we can be proud, once again, of the role we can play as a force for good in the world.