Countries invaded during World War 1 include:
Serbia (by Austria-Hungary and Bulgaria)
Luxembourg (by Germany)
Belgium (by Germany)
France (by Germany)
Albania (by several countries including Austria and Italy)
Romania (by Bulgaria, Germany, Austria)
Turkey/Ottoman Empire (by UK and France)
German Empire (by Russia)
Austria-Hungary (by Russia and Italy)
South Africa (by Germany)
West Africa (by UK and France)
Russia (by Ottoman Empire)
Greece (by Bulgaria)
Poland (by Germany and Austria)
Lithuania (by Germany)
Ukraine (by Germany)
Italy (by Austria-Hungary)
Estonia (by Germany)
Latvia (by Germany)
The only one that comes to mind is Gallipoli, Turkey, beginning in March 1915. Most of the infantry consisted of Austrialian troops but this was an Allied operation against the Turks, an ally of Germany. See the link that has highlights of various dates for naval and land operations. * The German colonies in Africa * Mesopotamia * Palestine
Great Britain and France declared war on Germany, when Germany invaded Poland - so began the second World War in Europe.
Great Britain, or more correctly The United Kingdom of Great Britain and Northern Ireland, was involved in both World War 1 and World War 2.
italy
Poland.
to look after belgium
During World War II, Germany gave up its plans to invade Great Britain because he could not defeat the British air force.
Britain wasn't invaded during World War 2
Poland.
Britain invaded most of the world by sending troops to claim lands and start war. It has been determined that there are only 22 countries in the world that Britain did not invade.
Great Britain and France declared war on Germany, when Germany invaded Poland - so began the second World War in Europe.
Germany refused a British demand not to invade Belgium (apex
war hawk
Significant for Great Britain, the war was not global yet as the US was not in it; and Germany would not invade Britain since they did not control the air.
Great Britain, or more correctly The United Kingdom of Great Britain and Northern Ireland, was involved in both World War 1 and World War 2.
italy
Czechoslovakia
world war 1