"First of all I want to clarify for those who may not know what a doomstack is. A doomstack is a common term within strategy gaming used to define ‘’an army that is too powerful to be defeated.’’ In Stellaris terms, it’s often what we call a super fleet that comprises every single ship available to an empire. Alternatively, it is a term we use to define ‘’the strongest possible army (fleet) we can get from what we have’’ which of course will always be to merge every single ship you have into a single massive fleet. This is how wars are fought in Stellaris. Both sides will always merge all of their ships into a single massive fleet, then duke it out in one lose all/win all battle where the winner takes everything and wins the war."