join forces

US /dʒɔɪn ˈfɔːrsɪz/
UK /dʒɔɪn ˈfɔːrsɪz/
"join forces" picture
1.

unir fuerzas, colaborar

to combine efforts or resources with another person or group to achieve a common goal

:
The two companies decided to join forces to develop a new product.
Las dos empresas decidieron unir fuerzas para desarrollar un nuevo producto.
We need to join forces if we want to win this competition.
Necesitamos unir fuerzas si queremos ganar esta competición.