After 11 September attack, anticipatory self defense has obtained
specific situation in the doctrine ,of western States. These countries
with financial and military power are seeking to justify this doctrine.
This type of defense is contrary to article 51 of the Charter of United
Nations that expresses the concept of self defense. In this paper, the
authors are going to verify and show that this doctrine can not find
legitimate situation in Opinio juris of .member States 'of international
community. Reports of the United Nations secretary general and
judgments of international court of justice support this conclusion.
However it seems that the verification of this doctrine can show its
critiques.
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