tug of war
US /ˌtʌɡ əv ˈwɔːr/
UK /ˌtʌɡ əv ˈwɔːr/

1.
tira y afloja
a contest in which two teams pull at opposite ends of a rope until one team succeeds in pulling the other over a central line
:
•
The annual picnic always features a lively game of tug of war.
El picnic anual siempre incluye un animado juego de tira y afloja.
•
Our team won the tug of war by a narrow margin.
Nuestro equipo ganó el tira y afloja por un estrecho margen.
2.
tira y afloja, lucha de poder
a situation in which two opposing groups are trying to win or gain control of something
:
•
There's a constant tug of war between the marketing and sales departments.
Hay un constante tira y afloja entre los departamentos de marketing y ventas.
•
The budget negotiations turned into a real tug of war.
Las negociaciones presupuestarias se convirtieron en un verdadero tira y afloja.