The word, behind, tells you where or something is in relation to something else. It also has a symbol hat is ;-)
Answer:
Two rival political parties temporarily work together to defeat a third party.
Explanation:
Cooperation is both long term or short term depending on the parties involved. If the parties who wants to undergo cooperation believes to built long term relationship then they will work together to achieve mutual benefit. If two parties want to gain temporary advantage from synergy they will have this cooperation for just a single project.
In this given extract, the third paragraph demonstrates a temporary cooperation. This could be two political parties working together to defeat a third party and then ending this cooperation.
Citing a source means to give credit to the source that you got your information
