Make common cause against (someone or something) phrase
To collaborate to combat, prevent, or frustrate someone or something.
Researchers in different fields around the world are making common cause against climate change.
They gathered soldiers to make common cause against the invading army.
Several countries made common cause against the Fascists.
The verb "make" must be conjugated according to its tense.
The origin of this phrase is not clear.
To be in a difficult situation or get into trouble
We broke the vase. We are in deep water.