[Grammar] by emergency, out of emergency, because of emergency

[chrichrichri]

Which expression do you use with 'emergency' when there is a specific emergency case and you want to name the results from it.

My sentence: ____ emergency, parts of the population occupied open land in the vicinity of Vienna in order to live there permanently. [context: after world war I - shortage of houses - people occupied free land without permission]

Is the right preposition by, out of, or because of or is there another, better option? I have read the threads about 'in case of' emergency, but these are about a possible (general) case which may take place, while here I want to express the results from a specific case of emergency that had already taken place.

 

[bhaisahab]

Why do you want to use "emergency"?

 

[chrichrichri]

if emergency is not the right word, which word should I use?

 

[chrichrichri]

ok - is by necessity the better expression or because of distress? I meant with 'emergency' not the shortage of houses in general, but world war one, where many families lost their homes and had no place to live, so they just built settlements themselves without official permission.

 

[bhaisahab]

Yes, "By necessity" would work.

 

[emsr2d2]

An emergency shortage of housing could be caused by something like an earthquake in which all the homes/buildings have been destroyed.