One ship, One army

Humanity is under threat. The Alien Empire is coming. The lead cruiser is too close to Earth and the fleet has not yet arrived. But your ship has a flux capacitor that allows you to travel through time. The on-board computer activates time travel every time you are close to death and moves you to the beginning of the battle, so that with each time travel, your variations increase. Use the flux capacitor and save the Earth!