A military coup d'etat is an illegal seizure of power by a group of military personnel from the government in power. Therefore, it is usually followed by the suspension of the constitution, as the military group takes control of the government. The military coup usually involves the use of force, and sometimes violence, to overthrow the government in power. In some cases, the military group might break diplomatic relations with foreign countries, but this is not always the case. Therefore, the correct option is the suspension of the constitution.