A drone can only go a certain distance,so how would a drone be able to fly far away into the rural places from a urban

Question: A drone can only go a certain distance,so how would a drone be able to fly far away into the rural places from a urban place?
- Keywords:
  drone
Asked by ava_k07 to Ruairi on 5 Mar 2020.
- Ruairi Williamson answered on 5 Mar 2020:
  
  You may be surprised how far drones can go!
  
  The small ones we can buy do have distance limitations but bear in mind, the army can use drones to fly over countries for long periods of time at very high altitudes for long periods of time!

Question: A drone can only go a certain distance,so how would a drone be able to fly far away into the rural places from a urban place?