Which countries or nations never in their history had slavery?

Which countries or nations never in their history had slavery?

Answer:

In short, no, there is no nation that has never had slavery. In almost every civilization, captured prisoners from battles or raids were almost always forced to work as laborers or servants within the enemy society and had very few rights or liberties. There is no recorded case of any region in the world that has not had slaves, as it is an almost universal trait in most early civilizations.

Russia, Denmark and Switzerland never participated in the slave trade.

The French colonial administration declared the abolition of slavery in Mauritania in 1905, but the size of Mauritania prevented it from being implemented. In 1981, Mauritania became the last country in the world to abolish slavery,