The US postwar history:

Korea: stalemate
Cuban Missile Crisis: stalemate
Vietnam: LOST
Operation Eagle Claw (Iranian Hostage Rescue): Failure
Lebanon: Marines blown up- failure
Reagan-Bush years: a string of success shooting down a few Libyan MiGs
and attacking small puny nations with no AF- Victory?
Gulf War I: had to raise a coalition to fight another Third World
nation, didn't finish the job which leads to Gulf War II. Kurds and
population suffer as a result.
The Balkans: another attack on an unworthy adversary. Serbs leave with
their armor and military/police units intact. International force
needed.
Terrorist attack on the USS Cole: failed
9/11: could prevent terrorist attack, 3000 fatalities
Afghanistan: attack on another unworthy adversary. Taliban and Osama
escape into Pakistan. International force needed again. Failure.
Iraq prewar: Fires at US aircraft for 7 years, US retaliates in 1998,
Iraq resumes firing at US aircraft for 4 more years
Gulf War II: US goes it alone, captures Saddam but cannot get real
reconstruction support or troops needed to finish the job due to
isolating UN and certain European nations- failure

Wow, how underwhelming it all is. We seem to be able to pound into
submission any puny Third World nation without a significant AF. But
we don't dare strike Iran, N Korea, or China. In fact China openly
threatens the US over Taiwan and is militarily developing systems to
defeat our stealth, satellites, and to attack the US with missiles in
the future. Iran has threatened the US over its nuclear reactor and N
Korea has done the same over its nuclear program which we failed to
stop. BTW, try attacking the FSU even at its weakest... they have
twice the nukes we have and we all know the history of those that
invade Mother Russia. On their turf the US would lose, same in China.
So I don't care how many time you say Germany lost. Germany is the
size of 1 US state and took on the world. It took everyone with
everything to beat them.
The US in Vietnam was a Superpower giant with the greatest technology
on earth... and lost to peasants walking through the jungle at night
in pajamas armed with an AK-47, machetes, mines, grenades and RPGs.
The US may be the lone Superpower on paper but our track record
post-WW2 isn't that great.

Rob