does this country use symbols for any purpose?
Yea, The flag of the United Kingdom and Britannia.
United Kingdom
The flag of the United Kingdom is the Union Flag (also referred to as the Union Jack). It was created in 1606 by the superimposition of the Flag of England on the Flag of Scotland and updated in 1801 with the addition of Saint Patrick's Flag. 
who fought in the battle of goodenough island? Allies and Japanese troops from the "Kaigun Rikusentai". when did the battle take place? 22–27 October 1942. who won? The Allies. what strategy did they use to win? UNANSWERABLE which countries were part of the allies? France, Poland and the United Kingdom. what is the weather like in the first country? Hot-summer mediterranean climate and the warm-summer mediterranean climate. please name some of the cities you can find here Paris, Lyon and Marseille. what language is spoken in the second country? Polish. what is the capital? Warsaw. what sports are played here? Volleyball and Association football. is either of these sports played by the third country? Association football. what religion do they follow in the thrid country? Christianity.
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United Kingdom [SEP] Symbols
The flag of the United Kingdom is the Union Flag (also referred to as the Union Jack). It was created in 1606 by the superimposition of the Flag of England on the Flag of Scotland and updated in 1801 with the addition of Saint Patrick's Flag. Wales is not represented in the Union Flag, as Wales had been conquered and annexed to England prior to the formation of the United Kingdom. The possibility of redesigning the Union Flag to include representation of Wales has not been completely ruled out. The national anthem of the United Kingdom is "God Save the Queen", with "Queen" replaced with "King" in the lyrics whenever the monarch is a man.