Vortex

In South Africa, Nazi-like ultraconservative Afrikaners take over the Pretoria government, then invade bordering Namibia. A Communist counterforce led by Cubans is mounted, as internal revolt and harsh suppression breed domestic chaos. A Boer nuclear attack on the Cubans is answered with nerve gas; only heavy commitments of U.S. and British forces restore order after much battling and destruction. The love interest involves an American TV journalist and a free-spirited daughter of one of the Afrikaner leaders.