Most of the biowarfare research using viruses which causes Aids and Ebola was predominantly carried out in Germany and Japan until 1945 and since then mainly in the USA and France, using Nazi and Japanese (military) scientific war criminals. The Revealing Voices of Aids/HIV Theory Dissidents.
copula - an equating verb (such as `be' or `become') that links the subject with the complement of a sentence. copulative, linking verb. verb - a content word that denotes an action, occurrence, or state of existence.
A copular verb is a special kind of verb used to join an adjective or noun complement to a subject. Common examples are: be (is, am, are, was, were), appear, seem, look, sound, smell, taste, feel, become and get. A copular verb expresses either that the subject and its complement denote the same thing or that the subject has the property denoted by its complement.