Depends on the time period considered.
From the break-up of the Scandinavian Kalmar union in the early 16th century, Denmark's main adversary was Sweden which made Russia the main ally for centuries.
In the 3o year war Denmark was on the protestant side, which would make England and Holland the main allies (supplying the finances for the hired army).
During the survival struggle in the 1660 Holland was an alley without which Denmark probably wouldn't have existed today.
In the Napoleonic wars Denmark was initially allied with various neutral Baltic countries (primarily Russia) trying to avoid having to side with neither France nor Great Britain. Eventually Denmark was forced to side with France.
Denmark in particular doesn't seem to have any enemies.
They don't view anyone as enemies, seeing as how they maintained a country with peace.
However, some Muslim countries, Pakistan especially, might view the Kingdom of Denmark as an enemy because of the Mohamed drawings.
Then there was the thing with Denmark fully agreeing and supporting America's attack on Afghanistan.
Allies: As a Western country, Denmark is alligned with Western countries such as the United States, the United Kingdom, France, Germany and Japan, and with traditional Western allies such as Saudi Arabia.
Enemies: It's very hard to point out "enemies", but they would be countries such as Iran, North Korea, Venezuela, Zimbabwe, Cuba, etc.
In between:
Many countries are in between those 2 categories. For example, Denmark enjoys good relations with China, but China isn't considered an ally, neither is it an enemy.
So in general, the political situation of Denmark internationally is similar to the rest of the Western countries.
So, is Afghanistan also Denmark's enemy?
Denmarks best midfielder is Ramadhal.
Denmarks famous butter is known as Lurpak.
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