
Asymmetric warfare is war between belligerents whose relative military power differs significantly, or whose strategy or tactics differ significantly. Asymmetric warfare can describe a conflict in which the resources of two belligerents differ in essence and in the struggle, interact and attempt to exploit each other`s characteristic weaknesses. ....
Found on
http://en.wikipedia.org/wiki/Asymmetric_warfare

a conflict in which the two sides are not equally matched in strength, but where the weaker employs unconventional tactics, as in the attacks on the Pentagon and World Trade Center.
Found on
http://news.bbc.co.uk/2/hi/uk_news/1717136.stm
No exact match found.