1. 1  a prefix meaning ânot,â freely used as an English formative, giving negative or opposite force in adjectives and their derivative adverbs and nouns (unfair; unfairly; unfairness; unfelt; unseen; unfitting; unformed; unheard-of; un-get-at-able), and less freely used in certain other nouns (unrest; unemployment). 1  Compare un-2 .
On August 7, 1998, at approximately 10:30 a.m. local time, two Embassies of the United States of America, located in the East African cities of Nairobi, Kenya and Dar es Salaam, Tanzania, were attacked in coordinated truck bombings, later determined to have occurred approximately four minutes apart.
In the early morning hours of October 25, 1983, the United States invaded the small Caribbean nation of Grenada. The fiery leftist President Maurice Bishop had been assassinated days earlier. The initial invasion consisted of some 1,200 US troops. At the time of the invasion, a delegation of 500 Cubans were in the country. They included doctors, engineers, teachers and construction workers, who were there to help build an international civilian airport for Grenada.