The <a class="mw-redirect" href="https://en.wikipedia.org/wiki/National_Defense_Act" id="mwnw" rel="mw:WikiLink" title="National Defense Act">National Defense Act</a> is signed into law, increasing the size of the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/United_States_National_Guard" id="mwoA" rel="mw:WikiLink" title="United States National Guard">United States National Guard</a> by 450,000 men.