But have any of your presidents actually made an official apology to any of the countries that America has invaded? Movies or documentaries don't count as they are by individual citizens and they don't move future public decisions as governments and lobbyists and the corporate sponsors of war do. Big difference.
On an individual basis and social basis, humans will always look to the 'big guy/head guy/rich guy' for HELP in times of trouble. What the world doesn't want is that same big guy taking over and dictating how their society,economy will run. The continual justification of invasions and abuses will never result in world peace and isn't that what we all want?
I think you meant 'you want descendants to learn from history'? Well, what has America learned from history? You memorialize and justify a bomb that was brutal on children and women and far too many of you evidence zero empathy for those civilians who still to this day suffer in some instances. And your government removes the law that prevented them from using a nuke as a 'first strike'. What did America learn from Afghanistan or better yet, Iraq? And yet, were quick to want to attack Syria who are fighting against al Qaeda and el Nusra terrorists, even while funding the same al Qaeda there that are blamed for 9/11, and which took America to Afghanistan to kill thousands. Only to have segments of them morph into ISIS, which your Pentagon was fully aware of by the way. And now finally, America is actually bombing in Syria which they wanted to do all along. What was learned?
The fact that Japan is seeking to change their constitution to allow them to fight outside their country once again, is a terrible thing which is probably the result of the stupid, mindless rumbling going on between them and China!!! Again with witless power struggles! Apparently that government hasn't learned anything, they just took a holiday from the insanity.
I'm only talking in terms here of what America has or hasn't done because you brought it up some of these questions, but the same thoughts could be levelled at almost every government in the world to some degree. We think ourselves so civilized and so developed and yet by and large, our societies are as willing to attack and maim and kill anyone who get's in the way of government agenda's in the same way as back in medieval and even more primitive times. And the officials spew government propaganda and our young men and women rush to involvement and our families mumble platitudes about 'praying for them'. There seems to be a total failure of the ability to work together: it's always 'might makes right'!
You're right, apologies mean nothing if they aren't backed up by a change of heart and attitude and actions. The question is, will there be a world left to choose peace when society is ready for it? Interesting question wouldn't you say?