I was introduced to this forum by a friend.... time for my many cents.
I assume this is during the height of their respective powers, the Federation right before the
dominion wars and the empire during the Empire Strikes Back. My friend explained to me how most
arguments go.... only canonical sources are legitimate. This poses a problem as almost EVERYTHING
star wars is cannon and little star trek is... but I'll work with what I have.
The Empire has FAR superior weapons technology because George Lucas or whoever decided on the
rediculous energy output of them has *member* size concerns. The Empire has better weapons.
The Empire has the production capacity of 20,000,000 planets behind it. They also have a space
fairing civilization that is very, very old. A large part of the galaxy has been terra formed.
The Federation is not nearly as old, nor have they taken any massive terraforming. It is very
sparsely populated compared to the Empire. The Empire beats the federation in production ability
by orders of magnitude.
The "barrier" to the galaxy(made by the Q's but that is not in a cannon source.... it's existence
and effects are cannon though) is supposed to isolate the galaxy, we assume the empire SOMEHOW
manages to get their fleet through it without going insane.
Though the Federation could likely get help from other races in the galaxy, you can not depend on
that, so we can not use that.... the Klingon being allies though would likely help.
So we have a !significantly! smaller group with smaller weapons smaller ships and less production
capacity fighting an ancient space faring civilization who has FAR faster ships. What do we do?
On the few posts I have read so far, I see many star wars fans derisively snearing at time travel.
I derisively snear at the rediculous output of empires weapons. Star Wars also has the benefit of a
zillion cannon sources that like to make everything "big". Time Travel is no less "legal" then the
rediculous empire weapons. In a war, all weapons are used. The Federation knows how to do time
travel, how to do it is in the federation data base of seemingly every major base/large ship but
access is restricted. Time Travel however is very, very illegal in the Federation-it is hard to
break the prime directive any more then by traveling through time(besides forward and at speed 1x).
We KNOW they know how to do it. Let's look at their actual willingness to do it.
We have the original series doing it a number of times, mostly by accident. We have the original
movies doing it ON PURPOSE just to save Earth-while not legal it got a "pass" from the government.
The Next Generation has tons of time travel. Sometimes on purpose, sometimes by accident. LOTS of
willingness is shown to do it, often for stuff less then saving Earth.
Deep space nine has done it repeatedly, on purpose I believe once and many times by accident.
VOYAGER! Voyager, the undefiable proof of the federations willingness to use time travel. Voyager
used time travel..... alot. I can't count the number of times a small group of voyager crew
survived some catastrophe, worked their whole lives then went back in time to change it. This
happened-!ALOT!.
Enterprise........ oh man. The coffee came out bad this morning... time to turn back time!
Enterprise has shown both a willingness and an ability(the ability may not be legitimate to use
here... the willingness is). Enterprise shows a willingness to use time travel.
*EVERY* Star Trek source has shown a willingness to use time travel-its use in a conflict where an
energy force that dwarves the borg is unquestionable. The Federation has no way to win a
conventional war against such an enemy and their destruction is certain. Why would they NOT use
it? The answer is that they WOULD use it.
They have the ability. The Empire could NEVER defeat the entire Federation fleet, too many scattered ships to take it entirely out. The remnants would get to a chrono twistin!
The applications to win with time travel are.... well infinite. You could effectively get an ininite amount of recconacinse. You can get all the technology information of the enemy and study it for ultimate critical weaknesses. You can get hyper advanced technology for yourself.... you have ALL the time you need to do anything. The only limit on time is the limit of the life times of those involved but that is not a limit-there are many solutions to that. Go back in time to RIGHT when you were about to start on your work.... pass off the latest version of the notes. Repeat till you have the means to rape the empire. Go to a point where the Empire fleet will be in orbit around a sun.... in the future. Bring a solar detonator. Go back in time.... detonate the sun. There are SO MANY applications for time travel I do not think I need to list them all.
Summation: In the face of the most overwhelming enemy the federation has ever met, they will posses both the desire and the ability to travel through time, thus defeating the enemy.
#### except it turns out time travel won't save THAT reality because when you time travel it makes alternate realities.
Ooops...... my friend explained this to me. FORTUNATELY the federation still wins in ALL realities

Final summation: The Empire could never conquer or defeat the Federation in all out war because after the all our war is lost by the federation the REAL war begins-a war where the federation gets infinite do-overs
