This question already has an answer here:
The story takes place in the future; humans have colonized our galaxy but they encounter an alien race with which peace is impossible. Colonies start the war but Earth doesn't help them and decides to block the solar system entirely with space mines so nobody can enter. Decades pass and humans from the colonies are losing the battle against the aliens because they lack battleships, and the only way to win against the aliens is to fight the same way but with more battleships than them.
Finally, one day Earth sends a ship with a very small crew. All the crew member have developed special powers, like tactical genius, telepathy, and telekinesis. This ship goes to the planet of origin of the aliens and thanks to their power manages to convince the alien leader to attack Earth massively.
Half of the alien army goes to Earth. Too late they realize it’s a trap: the sun or Earth (not sure which) explodes, half of the alien army is wiped out, and then the human colonies can win the war. Earth has been sacrificed for the fate of the human race.
I think the alien race look like giant bats.
I think the author is American and the book was released from 1990 to 2005.
What book is this?