Short answers, pulled from the story.
David Held describes military globalization as a process embodying the growing extensity and intensity of military relations among political units. This definition captures both expanding worldwide military ties and the impact of key technological innovations ranging from steamships to satellites.
Robert Keohane and Joseph Nye define it as long-distance networks of interdependence involving force where the threat or promise of force is employed within these networks. Their definitions highlight how military power extends across vast distances today through these interconnected systems.
The process of military globalization starts with the Age of Discovery period when European colonial empires began conducting military operations on a global scale. Max Ostrovsky notes that Keohane dates military globalization at least from Alexander the Great's conquests which established early patterns of cross-regional military engagement.
Held divides military globalization into the globalization of the war system itself, the global system of arms production and transfers, and the geo-governance of violence. These three aspects connect directly to technological development and result in increasing global interdependence for all nations involved.
Innovations from steamships to satellites have fundamentally changed how military forces project power by reconstituting the world into a single geostrategic space over time. Steamships allowed navies to reach distant shores with unprecedented speed while satellites now provide real-time intelligence and communication capabilities across the globe.