The military launched a pre-emptive attack to forestall any challenge to their leaders.Los militares lanzaron un ataque preventivo para anticiparse a cualquier reto a sus líderes.
As a stockholder, you have a preemptive right, that is the right to maintain your percentage in the company.Como accionista, tiene un derecho preferente, o sea, el derecho a mantener su porcentaje en la empresa.