Well fact is, Malta has some wicked shielding surrounding it due to constant corsair threat. You wont simply be able to drop anything down on the surface as all towns have strong shields to protect themselves.
as for radiation..... Space radiation is proven (in RL) to be MUCH MUCH stronger then gamma rays, which is the fallout from nuclear warheads. Anti radiation shielding, radiation medicine. its been around for centuries.
Anti matter is the way to go. Anti matter is basically a super-ionized particle with neutral standing to all atoms. It works by ionizing and dismantling anything it touches. Firing an antimatter cannon on a planets surface would cause even the atmosphere to be forcibly dismantled as the projectile travels through it. The only thing that can stop antimatter is when the projectile collides with more mass then it can dismantle and thus the antimatter itself dismantles and become loose matter.
Either way, if the gallics went into Alpha, their losses would be so high that they wouldn't be able to hold their ground in bretonia. Once the crowns navy weakens, the council would devastate the gauls from within with swift and determined attacks, weaking whatever power that were left.
And once all that was is over, if Malta did indeed become destroyed, they would face the might of the keepers. A threat they dont even know how to deal with....
![[Image: v1zVWKX.png]](https://i.imgur.com/v1zVWKX.png)