4 ms·Why? Britain was considered a larger power in the world until around WWII.by anon7000 2y agoWhy? Britain was considered a larger power in the world until around WWII.yabitts 2y ago[dead]soperj 2y agoBecause it was, it had a bigger population than the US does currently. Then all those countries under it's thumb declared independence, and that changed things considerably.