Punjab (; Gurmukhi: ; Shahmukhi: ; Punjabi: [pndab] (listen); also romanised as Panjb or Panj-b) is a geopolitical, cultural, and historical region in South Asia, specifically in the northern part of the Indian subcontinent, comprising areas of eastern Pakistan and northwestern India. The boundaries of the region are ill-defined and focus on historical accounts.

The geographical definition of the term "Punjab" has changed over time. In the 16th century Mughal Empire it referred to a relatively smaller area between the Indus and the Sutlej rivers. In British India, until the Partition of India in 1947, the Punjab Province encompassed the present-day Indian states and union territories of Punjab, Haryana, Himachal Pradesh, Chandigarh, and Delhi and the Pakistani regions of Punjab and Islamabad Capital Territory. It bordered the Balochistan and Khyber-Pakhtunkhwa regions to the west, Kashmir to the north, the Hindi Belt to the east, and Rajasthan and Sindh to the south.

The predominant ethnolinguistic group of the Punjab region is the Punjabi people, who speak the Indo-Aryan Punjabi language. Punjabi Muslims are the majority in West Punjab (Pakistan), while Punjabi Sikhs and Punjabi Hindus are the majority in East Punjab (India). Other religious groups are Christianity, Jainism, Zoroastrianism, Buddhism, and Ravidassia. The Punjab region was the cradle for the Indus Valley Civilisation. The region had numerous migrations by the Indo-Aryan peoples. The land was later invaded and contested by the Persians, Mauryans, Indo-Greeks, Indo-Scythians, Kushans, Macedonians, Ghaznavids, Turkic, Mongols, Timurids, Mughals, Marathas, Arabs, Pashtuns, British, and other peoples. Historic foreign invasions mainly targeted the most productive central region of the Punjab known as the Majha region, which is considered the bedrock of Punjabi culture and traditions. The Punjab region is often referred to as the breadbasket in both India and Pakistan.



The United Kingdom of Great Britain and Ireland was a sovereign state that existed between 1801 and 1922. It was established by the Acts of Union 1800, which merged the Kingdom of Great Britain and the Kingdom of Ireland into a unified state. The establishment of the Irish Free State in 1922 led to the remainder later being renamed the United Kingdom of Great Britain and Northern Ireland in 1927.

The United Kingdom, having financed the European coalition that defeated France during the Napoleonic Wars, developed a large Royal Navy that enabled the British Empire to become the foremost world power for the next century. For nearly a century from the final defeat of Napoleon following the Battle of Waterloo to the outbreak of World War I, Britain was almost continuously at peace with Great Powers with the most notable exception being the Crimean War with the Russian Empire in which actual hostilities were relatively limited. However, the United Kingdom did engage in extensive offensive military operations in Africa and Asia, such as the Opium Wars with the Qing Dynasty, to extend its overseas territorial holdings and influence. Beginning in earnest in the second half of the nineteenth century, the Imperial government granted increasing levels of autonomy to locally-elected governments in colonies where white settlers had become demographically and/or politically dominant, with this process eventually resulting in Canada, Australia, New Zealand, Newfoundland and South Africa becoming self-governing dominions. Although these dominions remained part of the British Empire, in practice dominion governments were permitted to largely manage their own internal affairs without interference from London, which was primarily responsible only for foreign policy.

Rapid industrialisation that began in the decades prior to the state's formation continued up until the mid-19th century. The Great Irish Famine, exacerbated by government inaction in the mid-19th century, led to demographic collapse in much of Ireland and increased calls for Irish land reform. The 19th century was an era of rapid economic modernisation and growth of industry, trade and finance, in which Britain largely dominated the world economy. Outward migration was heavy to the principal British overseas possessions and to the United States. The British Empire was expanded into most parts of Africa and much of South Asia. The Colonial Office and India Office ruled through a small number of administrators who managed the units of the empire locally, while democratic institutions began to develop. British India, by far the most important overseas possession, saw a short-lived revolt in 1857. In overseas policy, the central policy was free trade, which enabled British and Irish financiers and merchants to operate successfully in many otherwise independent countries, as in South America. London formed no permanent military alliances until the early 20th century, when it began to cooperate with Japan, France and Russia, and moved closer to the United States.

Growing desire for Irish self-governance led to the Irish War of Independence, which resulted in British recognition of the Irish Free State in 1922. Although the Free State was explicitly governed under dominion status and thus was not a fully independent polity, as a dominion it was no longer considered to be part of the United Kingdom and ceased to be represented in the Westminster Parliament. Six northeastern counties in Ireland, which since 1920 were being governed under a much more limited form of home rule, immediately seceded from the Free State and remained part of the Union under this limited form of self-government. In light of these changes, the British state was renamed the United Kingdom of Great Britain and Northern Ireland in 1927. The modern-day United Kingdom is the same state, that is to say a direct continuation of what remained after the Irish Free State's secession, as opposed to being an entirely new successor state.