Spanbroekmolen British Commonwealth War Graves Commission Cemetery was created in 1917.
Masnieres British Commonwealth War Graves Commission Cemetery was created in 1918.
Tuileries British Commonwealth War Graves Commission Cemetery was created in 1915.
Klein Vierstraat British Commonwealth War Graves Commission Cemetery was created in 1917.
British Cemetery in Madrid was created in 1854.
Bilbao British Cemetery was created in 1775.
If the person you are looking for was part of the British and Commonwealth (e.g. Canada, Australia, New Zealand, etc) forces then The Commonwealth War Graves Commission are excellent at pointing people to the right cemetery. Obviously some of the fallen were buried without being identified, by the Commission in in charge of the records and keeps the cemeteries in fine order. I am afraid I do not know of the arrangements or records in the cases of US servicemen or other allied forces taking part in the D Day landings.
The British Empire today, is now called the British commonwealth, or Commonwealth Realms or Commonwealth of Nations
Yes Pakistan is a member of the British Commonwealth
British Commonwealth Union was created in 1916.
The British Empire Games have changed names on three occasions: British Empire and Commonwealth Games (1954) British Commonwealth Games (1970) Commonwealth Games (1978)
Commonwealth of Nations, formerly known as Commonwealth and British Commonwealth, is formed from the countries of the British Empire. Commonwealth of Nations contains 54 independent modern countries. Only Mozambique and Rwanda were not part of the former British Empire.
The organization once known as the British Commonwealth is now called the Commonwealth of Nations, and, no, Chile is not a member.