Occupation (2018) (scifi war movie trailer).

The aliens are coming for – well, forget Colony and all that LA-centric nonsense, in Occupation, these rascal E.Ts have a taste for invading … Australia!

Here’s the film’s official blurb:

After their small Australian country town is annihilated by an overwhelming airborne attack, a group of civilians evade capture and discover they are now among the last remaining survivors of an extraterrestrial invasion engulfing the entire planet. As humanity falls under world-wide occupation, they form a home-grown army to fight back against vastly superior enemy forces. On the front lines of the battle for Earth, they are our last hope. Experience first contact, in the last place you would expect – Australia.