> US essentially defends the world, allowing other countries to spend money elsewhere.
The US doesn't “defend the world” by any stretch of the imagination. As for what it does commit to defending, well, other countries wouldn't let the US put the forces and facilities in their countries that the US wants there for global force protection of the US didn't also make a credible commitment to mutual defense; the US doesn't “defend the world” as a charitable service, it agrees to assist with the defence of select countries in order to contain others, secure access to key resources, and be in a position to project force to advance US interests anywhere in the world.
I can tell you're someone who has actually read the core objectives of branches of the military and has experience with their relationships with other countries.
If you're reading this and would like a concrete example of what the guy above me means, take a look at the U.S. history in major foreign bases like Okinawa. Okinawa does not exist so we can defend Japan. It serves as an Asian FOB, helps contain North Korea / China, secures our access to important shipping routes, and of course "projects force".
The "U.S. protects Europe and the rest of the world" is just some jingoist narrative with no factual basis.
The US doesn't “defend the world” by any stretch of the imagination. As for what it does commit to defending, well, other countries wouldn't let the US put the forces and facilities in their countries that the US wants there for global force protection of the US didn't also make a credible commitment to mutual defense; the US doesn't “defend the world” as a charitable service, it agrees to assist with the defence of select countries in order to contain others, secure access to key resources, and be in a position to project force to advance US interests anywhere in the world.