I find your considerations highly inflammatory.
Military law isn't restricted to the United States. Most countries, including Norway, are active participants in this distinct legal system to which members of the armed forces are subject. Most countries have additional restrictions applicable to their own members, but international law contains the framework in which military law is based. It has evolved over thousands of years into various
Codes of Conduct which govern the actions and restrictions of action of our military members. Thus, a soldier is not authorized to indiscriminantly kill civilians just because he's ordered to do so, even if that order comes from his commander in chief, which, for US military members, is the President of the United States.
Military law also governs (forbids) the use of "human shields," needlessly placing the citizens of one's own country in harms way by locating key military activities in heavily populated areas. No international body of law expects a combatant to not strike a key military target simply because the enemy has elected to place their citizenry in harms way. The burden does rest, however, on the combatant, to minimize "collateral damage," of which the deaths of citizens who's lives have been jeapordized by the enemy, may be a result.
It is this very need to minimize damage which has driven the requirement for more accurate weapons. Before "smart weapons," it might have taken three B-52's dropping perhaps a hundred 500-lb weapons to take out a hardened military command post. The collateral damage would have been huge, and anyone caught in the open within half a mile would have been killed. These days, a single laser-guided bunker-buster can achieve the same (if not better) effect while leaving others in the immediate vicinity unharmed.
The loss of civilian life when that life has been jeapordized by an enemy combatant's decision to co-locate key military operations in or near populated areas is the responsibility of both sides. First, for the enemy jeapordizing the lives of their civilians, and second, for the responsibility to minimize any loss of life to the maximum extent possible.
It does not forbid, however, engaging the enemy, provided such precautions to minimize the loss of lives jeapordized by the enemy have been taken.
In the case of Nagasaki and Hiroshima, the decision to drop the first weapon was made only after a careful analysis of the course of the war if they'd fought a conventional war, instead. The findings were that many hundreds of thousands of both soldiers and civilians would have been killed, on both sides, than by dropping the weapon. The second weapon was dropped only after allowing enough time for a demand for surrender to reach the Japanese government, be given careful consideration, and for the answer to be returned. When no answer was received, only then was the go-ahead given for the release of the second weapon.
This is absolutely false, as all war crimes are taken very seriously, and those found guilty have been punished appropriately. Many US servicemembers are in jail today, some with life terms, for having committed crimes since the invasion of Iraq in 2003. Indeed, for all wars, including WWI, WWII, Korea, Vietnam, as well as other military actions.