to commit (oneself), to promise
En caso contrario tendrían que comprometerse.
Otherwise, they would have to compromise.
— R.A.F. Facción del ejército rojo (2008)
Tom no quiere comprometerse.
Tom doesn't want to commit.
Argelia es el tipo de país con el que otras naciones temen comprometerse.
Algeria is the kind of country other nations are afraid to engage with.