artbrooks - I very rarely watch American news. When I google 'friendly fire', I find news about Canadian military men who have died or been injured by 'friendly fire' from the U.S. Perhaps you would be so kind as to inform me how many U.S. military men have been killed and/or wounded by 'friendly fire'.

Is it just the U.S. military that is failing to communicate or have other military organization also engaged in friendly fire incidents? My impression is that the U.S. is not being very careful about who they target and that the penalties they receive as a result are very small and insignificant.

If I am wrong, please refer me to a credible source.