Well "not beating Iraq..." we beat them militarily...
In a "total war" type of scenario..where we aren't concerned ONE BIT about civilian casualities, bombing schools, destroying vital infrastructure, etc...none of these nations would stand a chance.
Sure China has a huge army. Can it project that power to American shores? I don't think so. How many nuclear powered supercarriers do these nations have to project airpower around the world? We have more. How many AEGIS guided missile friagates/destroyers do they have with the most advanced sensor arrays in the world do these countries have? We have more. How many silent running SSN and SSBN's do these three countries have? Russia has some, if they can even operate...we have more. How many fourth and fifth generation fighters capable of engaging multiple targets simultaneously, with arguably the best trained pilots in the world do these countries have? Russia some, we have more. How will they defeat Tomahawk cruise missiles launched from these SSNs and SSBNs, as they destroy their infracstructure and paralyze power plants, water treatment facilities, hospitals, motor pools, etc? The missile flies below the radar, and we have many of them. How many long range superbombers, ala B52, do these nations have that can fly unmolested and drop massive amounts of ordinance under the protection of some of the most advanced electronic warfare planes (Prowler, etc.) The Russians have the TU-95 bear...a turboprop bomber as their most numerous strategic bomber. How will they stop tactical strikes by B2's when their archaic radar cannot even see where it is located?
Millions of troops and archaic equipment mean nothing if the power cannot be projected. They can mount a defensive war, sure, but airpower and sea power, the two most effective ways to project power and destroy military assets...we have both of those cards.
Can China deliver nuclear weapons to American shores effectively? No. Russia can, if silos are operational after the initial airstrikes. With Russia, worry lies with the SSBNs and the new Topol-M mobile ballistic missile erectors.
Can go on and on....
Iraq IS a war...but in a modern sense. It isn't WWII where we are leveling cities...if that was the case the US has the capability to do that in a heartbeat.
Gurkha,
http://en.wikipedia.org/wiki/Safeguard_Program
Thats what I say to the archaic Chinese ICBMS.