Great Britain, the team of the British Olympic Association (BOA), competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004 with the team of selected athletes was officially known as Team GB. The British sent a wide-ranging delegation to the Games, continuing its ubiquitous presence in the Olympic games, the only country to have sent competitors to every summer and winter games since the birth of the modern Olympics in 1896. Great Britain's 264 athletes, 161 men and 103 women, competed in 22 disciplines throughout the two-week event. The team entered the opening ceremony behind the Union Flag carried by judoka Kate Howey. Double gold medal winner Kelly Holmes carried the flag at the closing ceremony.
Croatia competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's fourth consecutive appearance at the Summer Olympics since the post-Yugoslav era. The Croatian Olympic Committee sent the nation's smallest delegation to the Games since its debut in 1992. A total of 81 athletes, 66 men and 15 women, competed in 14 sports. Men's water polo, and men's handball were the only team-based sports in which Croatia had its representation in these Olympic Games.
Great Britain and Northern Ireland, represented by the British Olympic Association (BOA), competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012 as the host nation and the team of selected athletes was officially known as Team GB. British athletes have competed at every Summer Olympic Games in the modern era, alongside Australia, France and Greece, though Great Britain is the only one to have won at least one gold medal at all of them. London is the first city to host the Summer Olympics on three different occasions, having previously done so in 1908 and 1948. Soon, it will be joined by Paris in 2024 and Los Angeles in 2028 in hosting the Olympic Games for a third time. Team GB, organised by BOA, sent a total of 541 athletes, 279 men and 262 women, to the Games, and won automatic qualification places in all 26 sports.
Italy competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This nation has competed at every Summer Olympic Games in the modern era, except for the 1904 Summer Olympics in St. Louis. The Italian National Olympic Committee sent the nation's smallest delegation to the Games since the 1988 Summer Olympics in Seoul. A total of 285 athletes, 162 men and 123 women, competed in 22 sports.
Croatia competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. This was the nation's sixth consecutive appearance at the Summer Olympics.
Greece competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. The Hellenic Olympic Committee sent a total of 103 athletes to the Games in London, 65 men and 38 women, to compete in 19 sports. Men's water polo was the only team event in which Greece was represented at these Olympic Games.
The water polo tournaments at the 2015 European Games in Baku, Azerbaijan were held at the Baku Aquatics Centre in the Baku Games Cluster from 12 to 21 June 2015. 16 teams competed in the men's tournament and 12 teams in the women's tournament.
Great Britain, or in full Great Britain and Northern Ireland, represented by the British Olympic Association (BOA), competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016 and the team of selected athletes was officially known as Team GB. British athletes have appeared in every Summer Olympic Games of the modern era, alongside Australia, France, Greece, and Switzerland, though Great Britain is the only country to have won at least one gold medal at all of them. The team represented the United Kingdom, the three Crown Dependencies, and the thirteen British Overseas Territories, ten of whom sent representatives.
Serbia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. It was the nation's fourth appearance at the Summer Olympics as an independent country. The Olympic Committee of Serbia confirmed a roster of 103 athletes, 58 men and 45 women, to compete across 14 sports at the Games.
Hungary competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Hungarian athletes have appeared in every edition of the Summer Olympic Games, except for two occasions. Hungary was not invited to the 1920 Summer Olympics in Antwerp, because of its role in the first World War, and it was also part of the Soviet boycott, when Los Angeles hosted the 1984 Summer Olympics.
Croatia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's seventh consecutive appearance at the Summer Olympics. The Croatian Olympic Committee confirmed a roster of 87 athletes, 68 men and 19 women, to compete across 18 sports at the Games.
Spain, represented by the Spanish Olympic Committee (COE), competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Since the nation's official debut in 1920, Spanish athletes have appeared in every edition of the Summer Olympic Games except for two; the 1936 Summer Olympics in Nazi Germany, and the 1956 Summer Olympics in Melbourne, as a protest against the Soviet invasion of Hungary. The Spanish Olympic Committee sent a total of 306 athletes, 163 men and 143 women, to compete in 25 sports.
Greece competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Greek athletes have competed in every Summer Olympic Games of the modern era, alongside Australia, France, Great Britain, and Switzerland. As the progenitor nation of the Olympic Games and in keeping with tradition, Greece entered first at the Maracanã Stadium during the opening ceremony.
Montenegro competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's third consecutive appearance at the Summer Olympics since it gained independence from Serbia in 2006.
Great Britain competed at the 2015 World Aquatics Championships in Kazan, Russia between 24 July to 9 August 2015.
Great Britain, or in full Great Britain and Northern Ireland, the team of the British Olympic Association (BOA), which represents the United Kingdom, competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic.
Great Britain competed at the 2019 European Games, in Minsk, Belarus from 21 to 30 June 2019. It won 6 gold medals, 9 silver medals and 8 bronze medals, totalling 23 medals and placing 9th on the medals table. When it had previously competed at the 2015 European Games in Baku, Azerbaijan, it won 47 medals, including 18 golds.
France is the host nation of the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. French athletes have appeared in every Summer Olympic Games of the modern era, alongside Australia, Great Britain, Greece, and Switzerland.
Great Britain, the team of the British Olympic Association (BOA) which represents the United Kingdom, is scheduled to compete at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. British athletes have appeared in every Summer Olympic Games of the modern era, alongside Australia, France, Greece, and Switzerland.
The Netherlands is scheduled to compete at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Dutch athletes have appeared in every edition of the Summer Olympic Games except for two occasions: the sparsely attended 1904 Summer Olympics in St. Louis and the 1956 Summer Olympics in Melbourne as a protest against the Soviet invasion of Hungary.
