### Question
How is the "complex attack" defined?


### Answer
The term **complex attack** is defined in *22 U.S.C. § 4866* as follows -

> given such term by the North Atlantic Treaty Organization, as follows: "An attack conducted by multiple hostile elements which employ at least two distinct classes of weapon systems (i.e., indirect fire and direct fire, improvised explosive devices, and surface to air fire).".

#### Citation:
  - *22 U.S.C. § 4866*
  - Heading: **CHAPTER 58-DIPLOMATIC SECURITY > SUBCHAPTER IV-DIPLOMATIC SECURITY PROGRAM**

