1373Treaty at St. Paul's Cathedral Treaty signed between Portugal and Britain that marked the beginning of their 'Perpetual friendship'.1386Treaty of WindsorThe alliance was ratified at the Treaty of Windsor strengthening it's legitimacy.1622Trade treatyAnglo-Portuguese peace and commercial treaty signed with Britain. Free to trade on the coast of Africa (mainly slave trade).1703Further tradeBritain began exporting textiles to Portugal without import duties and the importation of Portuguese wines increased. Throughout the alliance there was much trade between the pair.1762Seven Years WarIt was suspected that Portugal was going to be invaded by Franco-Spanish troops in the seven years war. In reaction 8000 British troops arrived in Portugal to protect their ally. Anglo-Portuguese were victorious over Spanish and French forces.1803Napoleonic War yearsPortugal was isolated in a Europe dominated by Napoleon but continued to trade with Britain despite French restrictions. Portugal was invaded and Britain stepped in and regained total sovereignty.1828Portuguese Civil WarDuring the Civil War years Britain gave significant support to the liberal faction.1881Scramble for AfricaBeginning of the scramble for Africa. Cracks In Anglo-Portuguese relations began to show themselves.1884Berlin Conference Here Portugal rejected the claims of the conference, which challenged their control in Mozambique. However Britain failed to support their ally with Lord Salisbury flatly refusing to support Portugal’s argument.1885The Pink Map This map represented Portugal’s control over a land corridor between Angola and Mozambique. Once again Britain failed to support Portugal with Lord Salisbury actively protesting the map.1890The British Ultimatum 11/01 Salisbury demanded the withdrawal of Portuguese troops from modern day Zimbabwe and the area between the Shire River where Portuguese and British interests overlapped.1910Fall of Portuguese monarchyThis has been considered a result of ultimatum.1914World War 1Great War breaks out in Europe.1916Portugal joins the warBritain invokes the alliance requesting Portugal to enter WW1.Key events of the Anglo-Portuguese AllianceTreaty at St. Paul's Cathedral Treaty signed between Portugal and Britain that marked the beginning of their 'Perpetual friendship'.Treaty of WindsorThe alliance was ratified at the Treaty of Windsor strengthening it's legitimacy.Trade treatyAnglo-Portuguese peace and commercial treaty signed with Britain. Free to trade on the coast of Africa (mainly slave trade).Further tradeBritain began exporting textiles to Portugal without import duties and the importation of Portuguese wines increased. Throughout the alliance there was much trade between the pair.Seven Years WarIt was suspected that Portugal was going to be invaded by Franco-Spanish troops in the seven years war. In reaction 8000 British troops arrived in Portugal to protect their ally. Anglo-Portuguese were victorious over Spanish and French forces.Napoleonic War yearsPortugal was isolated in a Europe dominated by Napoleon but continued to trade with Britain despite French restrictions. Portugal was invaded and Britain stepped in and regained total sovereignty.Portuguese Civil WarDuring the Civil War years Britain gave significant support to the liberal faction.Scramble for AfricaBeginning of the scramble for Africa. Cracks In Anglo-Portuguese relations began to show themselves.Berlin Conference Here Portugal rejected the claims of the conference, which challenged their control in Mozambique. However Britain failed to support their ally with Lord Salisbury flatly refusing to support Portugal’s argument.The Pink Map This map represented Portugal’s control over a land corridor between Angola and Mozambique. Once again Britain failed to support Portugal with Lord Salisbury actively protesting the map.The British Ultimatum 11/01 Salisbury demanded the withdrawal of Portuguese troops from modern day Zimbabwe and the area between the Shire River where Portuguese and British interests overlapped.Fall of Portuguese monarchyThis has been considered a result of ultimatum.World War 1Great War breaks out in Europe.Portugal joins the warBritain invokes the alliance requesting Portugal to enter WW1.