&amp;#8220;During World War I, European postcard publishers used photomontage to fan the flames of patriotism on both sides of the conflict. A postcard issued in Munich in 1914 shows a towering German infantryman pounding together the heads of three soldiers of the Triple Entente&mdash;France, England, and Russia&mdash;in what the caption calls a &ldquo;powerful collision.&rdquo; A few years later, an English publisher countered with a card on which a giant hand, its wrist and fingernails adorned with official portraits of the Allied leaders, crushes Germany&rsquo;s Kaiser Wilhelm II in a &ldquo;tightening grip.&amp;#8217;&amp;#8221;