My thoughts are summed up by these two quotes from our late Queen, relating to our present and our future.
"It has perhaps always been the case that the waging of peace is the hardest form of leadership of all."
which links with
"And when peace comes, remember it will be for us, the children of today, to make the world of tomorrow a better and happier place."
I think that the second quote is not possible without the first.
To be honest, I have no idea how to wage peace when powerful world leaders seemingly refuse to see things from other nations' perspectives or from a whole world perspective.
But here's hoping.
Got any ideas?