The collapse of the Roman Empire
The main way in which Theodore Roosevelt’s Corollary influenced US foreign policy was that it cast the US in a far more dominant light, since it threatened the use of force against countries that didn't "fall in line".
They actually invaded idia because of their wealth the turks not only invaded but became rulers of India. They wanted to show the Indians of how powerful they were and they also invaded because of the rivalry between the Indian rulers which gave opportunities to the turks
I believe the answer would be market economy
