by James Taylor

Winston Churchill became Britain's prime minister on 10 May 1940. As he was later to write: 'I felt...that all my past life had been but a preparation for this hour and for this trial'.

On the very day that Churchill fulfilled his life's ambition, Germany had, that morning, invaded France, Belgium, the Netherlands and Luxembourg. Britain faced its supreme test. It is for his leadership through these fraught years of 1940-1941 - through Dunkirk, the Battle of Britain and the Blitz - that Churchill is best remembered.

Crucially, he rallied the nation in defiance of Hitler. In the words of Labour politician Hugh Dalton, Churchill was 'the only man we have for this hour'. This view was shared by the overwhelming majority of the British people.

Less obviously, Churchill made planning and decision-making - both political and military - simpler and more efficient. His force of personality was instrumental in cementing the 'Big Three' Alliance with Britain's powerful allies, Russia and the United States. His unbounded energy and determination meant that he was not always easy to work with. But, as Field Marshal Sir Alan Brooke wrote, 'It is worth all these difficulties to have the privilege to work with such a man'.

In July 1945, with Nazi Germany defeated and Japan near to collapse, Churchill's Conservative Party lost a general election in a landslide victory for Labour. An electorate weary of war was looking ahead to a new Britain. Winston Churchill, the man who had done so much to secure eventual Allied victory was, once again, out of office.

Winston Churchill makes a radio address from his desk at 10 Downing Street wearing his 'siren suit'.
© IWM H 20446
Words as weapons

In the dark early days of the Second World War Churchill had few real weapons. He attacked with words instead. The speeches he delivered then are among the most powerful ever given in the English language. His words were defiant, heroic and human, lightened by flashes of humour. They reached out to everyone in Britain, across Nazi-occupied Europe, and throughout the world. As journalist Beverley Nichols wrote, 'He took the English language and sent it into battle.'

Winston Churchill is cheered by workers during a visit to bomb damaged Plymouth on 2 May 1941.
© IWM H 9265
A Popular Prime Minister

Winston Churchill is cheered by workers during a visit to bomb-damaged Plymouth on 2 May 1941. This was one of many morale-boosting visits he made across Britain. Public opinion polls, then in their infancy, show that between July 1940 and May 1945, never less than 78 per cent of those polled said they approved of Churchill as prime minister.

The Prime Minister Winston Churchill studies reports of the action that day with Vice Admiral Sir Bertram Ramsay, Flag Officer Commanding Dover, on 28 August 1940.
© IWM H 3508
High Expectations

Churchill studying action reports with Vice Admiral Bertram Ramsay on 28 August 1940. Ramsay would play a key role in defending against the expected German invasion. Churchill regularly worked 18-hour days. He carried on working at weekends and travelled abroad many times a year to conferences and battlefronts. He could be charming and generous but also exasperating, rude and bad-tempered. He drove his staff very hard, but he drove himself even harder.

At a drinks reception prior to a dinner party Marshal Joseph Stalin raises his glass for a toast to Mr Churchill. Also present are senior military and civilian officials.
© IWM A 20731
Awkward Allies

Marshal Josef Stalin makes a toast to Churchill on 30 November 1943, the British premier's 69th birthday, during the Tehran Conference. Stalin was a difficult ally and relations were not always this friendly. With Russia taking the brunt of the war against Germany, Stalin had aggressively insisted on an invasion of northern France. Churchill resisted. He believed that any premature 'Second Front' was likely to fail. At Tehran, a date was finally set for June 1944.

Churchill leaning into President Roosevelt's car to greet him after arriving for the Quebec conference in Canada, 11 September 1944.
© IWM H 40057
A Special Relationship

Churchill leaning into President Roosevelt's car to greet him after arriving for the Quebec conference in Canada, 11 September 1944. 

Wartime Conferences of the 'Big Three': The 'Big Three' at Yalta. From left to right: Prime Minister Winston Churchill, President Franklin Roosevelt and Marshal Josef Stalin in the grounds of Livadia Palace, Yalta.
© IWM NAM 237
Keeping Alliances Afloat

The 'Big Three' - Churchill, Roosevelt and Stalin - at the Yalta Conference. Churchill travelled all over the world building and sustaining the 'Grand Alliance'. This was an exhausting task. Between 1941 and 1945, he went on 19 gruelling and often dangerous journeys overseas. In December 1941, he suffered a mild heart attack at the White House and, two years later, a severe bout of pneumonia after the Tehran Conference.

Churchill waves to crowds in Whitehall on the day he broadcast to the nation that the war with Germany had been won, 8 May 1945.
© IWM H 41849
Victory at war...

Churchill waves to crowds in Whitehall celebrating the defeat of Nazi Germany on Victory in Europe Day (VE Day), 8 May 1945. In a speech to them, he declared: 'God bless you all. This is your victory!' The crowd roared back, 'No - it is yours'. For Churchill, nothing would match his wartime triumphs. What came afterwards would be 'all anticlimax' as he later wrote in his war memoirs.

The Prime Minister Winston Churchill makes a speech in Uxbridge, Middlesex, during the general election campaign on 27 June 1945.
© IWM HU 55965
...But not in post-war Britain

Few failed to recognise Churchill's part in Britain's survival and victory. But after six years of war, people wanted more than just a return to the old order. They wanted reform and reconstruction of Britain. On 26 July 1945, Churchill learned that he and the Unionists (Conservatives) had been rejected by the people. Labour, under Clement Attlee, would govern Britain in the immediate post-war world.

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