How can you explain the success of the Europeans in the conquest of new lands?

After major geographical discoveries, many European states wanted to expand their sphere of influence to new lands. Thus, military expeditions were organized. Very often during such expeditions, military clashes took place, where the Europeans were mainly victorious. This is due to the fact that the Europeans were much better armed, their military technology was centuries ahead of the technology of the local aborigines, who fought with bows and spears.