Why did Zeus fear Hera the most?

Zeus feared Hera the most due to her fierce intelligence, cunning nature, and her capacity for jealousy and vengeance. As his wife and sister, she was both a powerful ally and a formidable opponent. Hera's wrath was notorious, often directed at Zeus's numerous lovers and illegitimate offspring, and he understood that provoking her could lead to dire consequences. Ultimately, her ability to challenge his authority made her a figure to be reckoned with in the pantheon of gods.