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.
(CNN)Here's some background information about the September 11, 2012 attack on the US mission in Benghazi, Libya. Facts: September 11, 2012 - The US mission in Benghazi, Libya, is attacked and burned. An attack later that night involves mortar and rocket fire against a US diplomatic annex in the city. US Ambassador Christopher Stevens and three other US nationals are killed in the attack. More than 30 Americans are evacuated.