home front
noun /ˌhəʊm ˈfrʌnt/
  /ˌhəʊm ˈfrʌnt/
[singular]Idioms - the people who do not go to fight in a war but who stay in a country to work
Idioms 
on the home front 
- at home, or in your own country- On the home front, it’s been a busy year for the President.
- On the home front, the fuel crisis continues to worsen.