Reminds me of a dream I had when I was simi-awake.
A Planet divided into Two World Goverments that are in direct opposition to eachother (Politically, Economically, Spiritually). They remain at a cold
war for many many decades. Both Sides building new arms and weapons to kill eachother preparing for the mother of all wars. The get to the point
they design robots and androids to fight the wars for them. Still no war.
A War never happens because they declar peace, ending a century of hostilities.
They use the robots to take care of domestics and manufacuting. The Androids become so advanced they are almost human like.
The humans start dying off and less and less reproduce. Instead of the Androids and Robots having evil motives their motives are good and humain.
They take care of the last of the humans as they slip away into death from old age.