At night the floodlights shine from rural houses while watchmen peer through barred windows for a glimpse of intruders. During the day, gun-bearing farmers vary the routine of their chores so that no sniper can plan an ambush. Though only twelve civilians have been killed so far, the six-month-old black insurgency in northeastern Rhodesia has already raised serious doubts about the future of Ian Smith's white supremacist government.
The Rhodesian army has set up scores of its barbed-wire-encrusted bunkers to protect vulnerable airstrips and command posts, and light planes scour the rough terrain to search for suspicious activity. To make...