Beyond Icefall - Conflict in a new Australia

Smart beautiful, sometimes uncouth Tanya is now the leader of The Settlement, following the death of her father-in law and mentor David. Tanya's leadership is tested by:
Other surviving enclaves taking advantage of the leadership change to attack The Settlement.
Dealing with her serially unfaithful husband Mark. Contending with the ambitions of brother-in-law General Jonathan Bower, head of the Australian military, wanting The Settlement to fall under military control.
In a series of violent confrontations, The Settlement, in very difficult situations, overcomes all challenges and manages to ensure that the military finally falls under civilian control, represented by The Settlement.