Information: - The two branches of the Barakzai dynasty (Translation of Barakzai: sons of Barak) ruled modern day Afghanistan from 1826 to 1973 when the monarchy ended under Musahiban Mohammad Zahir Shah. The Barakzai dynasty was established by Dost Mohammad Khan after the Durrani dynasty of Ahmad Shah Durrani was removed from power. During this era, Afghanistan saw much of its territory lost to the British in the south and east, Persia in the west, and Russia in the north. There were also many conflicts within Afghanistan, including the three major Anglo-Afghan Wars and the 1929 civil war. - Buckingham Palace is the London residence and administrative headquarters of the reigning monarch of the United Kingdom. Located in the City of Westminster, the palace is often at the centre of state occasions and royal hospitality. It has been a focal point for the British people at times of national rejoicing and mourning. - Sher Ali Khan(c. 1825 February 21, 1879) was Amir of Afghanistan from 1863 to 1866 and from 1868 until his death in 1879. He was the third son of Dost Mohammed Khan, founder of the Barakzai Dynasty in Afghanistan. - The Emirate of Afghanistan ("") was an emirate between Central Asia and South Asia, which is today's Islamic Republic of Afghanistan. The emirate emerged from the Durrani Empire, when Dost Mohammed Khan, the founder of the Barakzai dynasty in Kabul, prevailed. The history of the Emirate was dominated by 'the Great Game' between the Russian Empire and the United Kingdom for supremacy in Central Asia. This period was characterized by the expansion of European colonial interests in South Asia. The Emirate of Afghanistan continued the war with the Sikh Empire, which led to the invasion of Afghanistan by British-led Indian forces who completely wiped out the Afghans in 1842 but did not fulfil their initial war objectives. However, during the Second Anglo-Afghan War, the British again defeated the Afghans and this time the British took control of Afghanistan's foreign affairs until Emir Amanullah Khan regained them after the Anglo-Afghan Treaty of 1919 was signed following the Third Anglo-Afghan War. - The Victoria Cross (VC) is the highest award of the United Kingdom honours system. It is awarded for gallantry "in the face of the enemy" to members of the British armed forces. It may be awarded posthumously. It was previously awarded to Commonwealth countries, most of which have established their own honours systems and no longer recommend British honours. It may be awarded to a person of any military rank in any service and to civilians under military command although no civilian has received the award since 1879. Since the first awards were presented by Queen Victoria in 1857, two thirds of all awards have been personally presented by the British monarch. These investitures are usually held at Buckingham Palace. - Victoria (Alexandrina Victoria; 24 May 1819 22 January 1901) was Queen of the United Kingdom of Great Britain and Ireland from 20 June 1837 until her death. From 1 May 1876, she adopted the additional title of Empress of India. - The Treaty of Gandamak officially ended the first phase of the Second Anglo-Afghan War. Afghanistan ceded various frontier areas to Britain to prevent invasion of further areas of the country. - Major John Cook VC ( 28 August 1843 -- 19 December 1879 ) was a Scottish recipient of the Victoria Cross , the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces . An officer of the Bengal Staff Corps who transferred to the 5th Gurkha Rifles , Cook was a veteran of the Umbeyla Campaign who received the VC posthumously for his actions during the Second Anglo - Afghan War . - Russia, also officially known as the Russian Empire, was a state that existed from 1721 until it was overthrown by the short-lived liberal February Revolution in 1917. One of the largest empires in world history, stretching over three continents, the Russian Empire was surpassed in landmass only by the British and Mongol empires. The rise of the Russian Empire happened in association with the decline of neighboring rival powers: the Swedish Empire, the PolishLithuanian Commonwealth, Persia and the Ottoman Empire. It played a major role in 181214 in defeating Napoleon's ambitions to control Europe, and expanded to the west and south. - The British Raj (from "rj", literally, "rule" in Hindustani) was the rule of the British Crown in the Indian subcontinent between 1858 and 1947. The rule is also called Crown rule in India, or direct rule in India. The region under British control was commonly called India in contemporaneous usage, and included areas directly administered by the United Kingdom, which were collectively called British India, and those ruled by indigenous rulers, but under British tutelage or paramountcy, and called the princely states. The resulting political union was also called the Indian Empire and after 1876 issued passports under that name. As India, it was a of the League of Nations, a participating nation in the Summer Olympics in 1900, 1920, 1928, 1932, and 1936, and a founding member of the United Nations in San Francisco in 1945. - The Second AngloAfghan War (Pashto: - ) was fought between the British Raj and the Emirate of Afghanistan from 1878 to 1880, when the latter was ruled by Sher Ali Khan of the Barakzai dynasty, the son of former Emir Dost Mohammad Khan. This was the second time British India invaded Afghanistan. The war ended after the British emerged victorious against the Afghan rebels and the Afghans agreed to let the British attain all of their geopolitical objectives from the Treaty of Gandamak. Most of the British and Indian soldiers withdrew from Afghanistan. The Afghan tribes were permitted to maintain internal rule and local customs but they had to cede control of the area's foreign relations to the British, who, in turn, guaranteed the area's freedom from foreign military domination. This was aimed to thwart expansion by the Russian Empire into India. What entity does 'john cook ' has the relation 'country of citizenship' with?
The answer to this question is:
united kingdom of great britain and ireland