At the end of the countdown, more than ten of Earth's battleships attacked Thanos's warship at the same time.
This was also very deliberate.
The stronger the attack on the warship's protective shield at the same time, the more likely it was to be broken.
Thanos's warship looked a little like a thicker version of a manta ray with longer wings.
To use one word to describe it, it was 'sturdy'; it was hundreds of meters bigger in diameter than the donut battleships.
There was enough room inside to install an energy system for the numerous energy cannons as well as for the protective shield.
In fact, it had two protective shields and separate energy systems.
When the first shield was broken, the second shield would be activated, giving the first protective shield enough time to recharge.
However, it had been a long time since Thanos had needed to activate the second protective shield.