# Lesson 1 — Kill Chain & the EW Framework

<p class="block-synopsis">The air-threat kill chain, the ES/EP/EA taxonomy that organizes every spectrum technique, and the fourth-power law that explains why halving a radar's detection range costs a 12&nbsp;dB cut in RCS.</p>

<div class="block-toc">
  <a class="bt-card bt-reading" href="L01_KillChainAndEWFramework_Reading.html">
    <span class="bt-kind">Reading</span>
    <h4>Kill Chain &amp; the EW Framework</h4>
    <p>Detect → Track → Identify → Engage → Kill, the ES/EP/EA disciplines, and the fourth-power detection law.</p>
  </a>
  <a class="bt-card bt-flashcards" href="L01_Flashcards.html">
    <span class="bt-kind">Flashcards</span>
    <h4>Review deck</h4>
    <p>Key terms and relations from the lesson, in a self-test deck.</p>
  </a>
  <a class="bt-card bt-demo" href="L01_KillChainExplorer_Demo.html">
    <span class="bt-kind">Demo</span>
    <h4>Kill Chain Explorer</h4>
    <p>Walk each link, see the disciplines that break it, and drill ES/EP/EA classification.</p>
  </a>
  <a class="bt-card" href="L01_Preflight.html">
    <span class="bt-kind">Pre-flight</span>
    <h4>Pre-flight quiz</h4>
    <p>Pre-class check, due before the lesson. Counts toward your IP grade.</p>
  </a>
</div>