 Simultaneously, FRELIMO also pursued close relations with the latter; for example, by 1971 it had cultivated an alliance with the Zimbabwe African National Liberation Army (ZANLA).ZANLA insurgents were permitted to infiltrate Rhodesia from FRELIMO-held territory.During the late 1960s, the Azanian People's Liberation Army (APLA) also took advantage of the gradual disintegration of Portuguese military control in Mozambique to begin infiltrating South Africa from that territory.