US has 600 air refuelling aircraft and 40 naval supply ships.

US power is mostly strategic, it's 'Air Based' which gives the kind of instant leverage leaders like. It's 'Aircraft Carrier Based'.

The US doesn't have that same overwhelming ability otherwise.

You can't quite an Army overseas - it takes a different kind of logistics esp. in Pacific, one the US doesn't quite have the level of sophistication.

Don't get me wrong - 'it could' but would take a while to ramp up.

I believe GP was being sarcastic.

I was not

Then I’d stop at claiming “best” is meaningless in a military context without defining what the mission is. If it is starting wars, I’d say it’s great. If it means achieving goals, then it’s kind of meh.

In terms of logistics ? US is the best ever conceived in the history of mankind.

Generals say it’s logistics that win wars. The US record in winning wars is simply terrible.

US hasn’t lost a war yet.

US also has a large strategic-sealift force: dozens of RO/RO ships, commercial shipping agreements and prepositioned Army equipment in the Pacific and Indian Ocean.

It can move man and materiel anywhere it pleases and fast.

It's ok though - the US Forces do have 'the best logistics in the world' - that's not an unfair claim at all.

They are exceedingly exceptional.

But all of these systems have limits and characterizations.

US would be hard pressed to keep 500K people full supplied and engaged in Pacific. It would take a while to ramp that up.

Sure, every logistics system has limits. But “it would take time to ramp up” isn’t the same as “the US can’t do it.”