What stopped the Europeans from taking over?

Several factors hindered European domination, including strong resistance from indigenous populations, particularly in regions like Africa and Asia, where local leaders and armies fiercely defended their territories. Additionally, geographical barriers and vast distances complicated military campaigns and supply lines. Internal conflicts and rivalries among European powers also diverted attention and resources, preventing a unified effort to conquer all regions. Finally, the emergence of nationalism and independence movements in colonized countries further challenged European control.