Military strength is a term that describes a quantification or reference to a nation's standing military forces or the capacity for fulfillment of that military's role. For example, the military strength of a given country could be interpreted as the number of individuals in its armed forces, the destructive potential of its arsenal, or both. For example, while China and India maintain the largest armed forces in the world, the U.S. Military is considered to be one of the world's strongest, although the certainty of such a claim cannot be ascertained without a detailed analysis of opposing military forces in relation to one another as well as taking into account the field(s) of battle and tactics used in such a conflict. The UK and in some regards Israel have also been described as the best trained and operating militaries in the world.