HOW TO TAKE OVER THE GALAXY:
(Prequisites: Must already control Planet Earth)
So you want to take over the galaxy. Well we're going to have to go through some basic setup procedures before you can assert your control over your very own galaxy. First, make sure you do in fact control your very own planet. If you don't have this, please discontinue reading... we don't want this falling into the wrong hands. Finally check to make sure you have polar ice caps. This is crucial in galactic domination!
1) Upon subjugating your race, find a large mass of killers, psychos, and hardcore military buffs. Send them to the farthest reaches of your planet, putting them in the coldest climates you have available.
2) Leave them alone for 4-5 generations (we hope your species lives a long time). If your race is not already able to make intersellar travel, develop it during those 4-5 years.
3) Once they have forgotten the cruelties you have subjected them to, and you are ready to conquer, simply send in your now Polar-resistant soldiers, and you have the most highly skilled warriors in the galaxy. Combining your races travel capabilities and cold-resistant troops, they'll be able to withstand frigid arctic planets and the icy cold void of space.