Number of Armies after reducing number of cities

[RedBird]

Suppose I have 40 cities, and 10 armies (built and with units) supported by those cities. What happens if I abandon ten or twenty of my cities (not that I would, but I could...)? I would no longer have sufficient cities to support the armies. What happens? Do I lose armies? Do I get to keep them? If lost, do I get to choose, or is it something automatic (like furthest from the capital)?

[SABRA]

The armies stay , but you wont be able to get new ones .