Strength is a rough measurement of the fighting prowess of a unit in Civilization V. There are two different types of Strength, which can be modified by factors such as promotions and terrain: * Image:20xStrength5.png Combat Strength determines how much damage a unit inflicts in melee combat and how much damage it sustains when defending against attacks of any sort (in which case it can be called "Defense Strength"). Notably, the terms "Strength" and "Combat Strength" are sometimes used interchangeably. * Image:20xRangedStrength5.png Ranged Strength determines how much damage a unit inflicts with ranged attacks. Attacks that use Image:20xRangedStrength5.png Ranged Strength cannot capture cities, but defenders cannot retaliate against them as they can against melee attacks (unless the