What era in history or territory you would like to return as a reference if you have a time machine.
I say its the beginning of the best times on earth, with each and every life facility you have in hand or fingers. All you have to do is appreciate what people are doing for people.
What wars you are talking about presently, big names have disappeared like Alqaida, ISIS or Taliban etc. Irag and Seria are traveling back to norms, Every country in the world is now striving for good economy following Chinese path including Pakistan.
The main factors in balancing the world are technology and nuclear equilibrium.