Was the encomienda system more similar to slavery or serfdom?

The encomienda was a Spanish labor system that rewarded conquerors with the labor of ... The encomienda established a relationship similar to a feudal relationship, ... the status of the Indian population": the natives were free men, not slaves or serfs. ... Reséndez, Andrés. The Other Slavery

Explanation:

so slavery

food chain i would say only because there is competition on getting food and survival

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.