This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.
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Question: Passage: Prior to Confederation in 1867, residents of the colonies in what is now Canada served as regular members of French and British forces and in local militia groups. The latter aided in the defence of their respective territories against attacks by other European powers, Aboriginal peoples, and later American forces during the American Revolutionary War and War of 1812, as well as in the Fenian raids, Red River Rebellion, and North-West Rebellion. Consequently, the lineages of some Canadian army units stretch back to the early 19th century, when militia units were formed to assist in the defence of British North America against invasion by the United States. Question: The forces of what countries did people serve before the unification?

Answer: French and British forces


Question: Passage: The annual Southampton Boat Show is held in September each year, with over 600 exhibitors present. It runs for just over a week at Mayflower Park on the city's waterfront, where it has been held since 1968. The Boat Show itself is the climax of Sea City, which runs from April to September each year to celebrate Southampton's links with the sea. Question: In what month each year is the Southampton Boat Show held?

Answer: September


Question: Passage: Nicholas felt that, because of Russian assistance in suppressing the Hungarian revolution of 1848, Austria would side with him, or at the very least remain neutral. Austria, however, felt threatened by the Russian troops in the Balkans. On 27 February 1854, the United Kingdom and France demanded the withdrawal of Russian forces from the principalities; Austria supported them and, though it did not declare war on Russia, it refused to guarantee its neutrality. Russia's rejection of the ultimatum caused the UK and France to enter the war. Question: Who wanted the Russian forces to leave the principalities?

Answer:
the United Kingdom and France