Here are a few options for a formal rewrite, depending on the desired emphasis:
Option 1 (Most direct and formal):
“The Escalation of Global Political Violence: An Analysis of Its Underlying Drivers”
Option 2 (Focusing on the systemic nature):
“The Convergence of Factors Fueling Global Political Instability and Violence”
Option 3 (Academic and analytical):
“An Examination of the Systemic Conditions Precipitating Contemporary Political Violence”
Recommendation:
“The Escalation of Global Political Violence: An Analysis of Its Underlying Drivers” conveys the gravity of the subject while maintaining a professional and journalistic tone.