Origins: The Truman Doctrine & Marshall Plan

                <h2>Containment Policy Explained</h2>
                <p>The <b>Truman Doctrine (1947)</b> was an American foreign policy that pledged to contain the spread of communism in Europe. This led directly to the <b>Marshall Plan</b>, which provided over $12 billion in economic aid to rebuild Western Europe.</p>

                <h3>Essay Key Points:</h3>
                <ul>
                    <li><b>Ideological Split:</b> Capitalism (USA) vs. Communism (USSR).</li>
                    <li><b>Economic Aid:</b> Used as a tool to prevent political instability. The US believed poverty was a breeding ground for communism.</li>
                </ul>
                <div class="alert alert-info"><b>Study Tip:</b> When writing essays, argue that the Marshall Plan was arguably the most successful US foreign policy initiative of the 20th century because it solidified the Western Bloc.</div>