Throughout the colonial war period Portugal had to deal with increasing dissent, arms embargoes and other punitive sanctions imposed by most of the international community. However, the authoritarian and conservative Estado Novo regime, first installed and governed by António de Oliveira Salazar and from 1968 onwards led by Marcelo Caetano, tried to preserve a vast centuries-long intercontinental empire with a total area of 2,168,071 km2.