In the United Kingdom, National Government is an abstract concept referring to a coalition of some or all major political parties. In a historical sense it usually refers primarily to the governments of Ramsay MacDonald, Stanley Baldwin and Neville Chamberlain which held office from 1931 until 1940.
The all-party coalitions of Herbert Henry Asquith and David Lloyd George in the First World War and of Winston Churchill in the Second World War were sometimes referred to as National Governments at the time, but are now more commonly called Coalition Governments. The term "National Government" was chosen to dissociate itself from negative connotations of the earlier Coalitions. Churchill's brief 1945 "Caretaker Government" also called itself a National Government and in terms of party composition was very similar to the 1931–1940 entity.
The Wall Street Crash heralded the global Great Depression and Britain was hit, although not as badly as most countries. The government was trying to achieve several different, contradictory objectives: trying to maintain Britain's economic position by maintaining the pound on the gold standard, balancing the budget, and providing assistance and relief to tackle unemployment. The gold standard meant that British prices were higher than its competitors, so the all-important export industries did poorly.
In 1931 the situation deteriorated and there was much fear that the budget was unbalanced, which was born out by the independent May Report which triggered a confidence crisis and a run on the pound. The Labour government agreed in principle to make changes in taxation and to cut expenditure to balance the budget and restore confidence. However the Cabinet could not agree on the two options available: either introduce tariffs (taxes on imports) or make 20% cuts in unemployment benefit. When a final vote was taken, the Cabinet was split 11-9 with a minority, including many political heavyweights such as Arthur Henderson and George Lansbury, threatening to resign rather than agree. The unworkable split, on 24 August 1931, made the government resign.