Legacy means many things

Past legacy has a serious repercussion on the present affairs of a Nation.We have to learn a lot from the past.If there is a fresh start without looking in to the past means  an earthquake in the life of a country.You may hold for sometime if you are exceptionally strong.But even the so called strong nation also take a  lesson from history and advance.
Foreign and defence policy in this context matter most.We can see some country try to fresh start and making many mistakes which is weakening their strong stand and image.
An advice would be very careful marching in this direction with a guide when you do not know rhe new domain.