se han unido

have joined together

→ se
phrase Rare #35,000
have joined together Used for people or groups coming together or becoming one group.
SP: Los dos equipos se han unido para ayudar a la comunidad.
EN: The two teams have joined together to help the community.

Mientras hablabas con la policía, tus hombres se han unido a nosotros.

While you were speaking with the police, your men joined us.

— Kung Fu Sion (2004)

Familiares y amigos se han unido para buscarlo.

Family and friends have joined together to search for him.

— Contratiempo (2017)

Oriente y Occidente se han unido.

East and West have united.

— RRR (2022)

Por qué se han unido.

Why have they joined?

— El cartero (y Pablo Neruda) (1994)