World War II: Navigational error leads to the mistaken <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Bombing_of_Prague_in_World_War_II" id="mwAR8" rel="mw:WikiLink" title="Bombing of Prague in World War II">bombing of Prague</a>, <a href="https://en.wikipedia.org/wiki/Czechoslovakia" id="mwASA" rel="mw:WikiLink" title="Czechoslovakia">Czechoslovakia</a> by a <a href="https://en.wikipedia.org/wiki/United_States_Army_Air_Forces" id="mwASE" rel="mw:WikiLink" title="United States Army Air Forces">United States Army Air Forces</a> squadron of <a href="https://en.wikipedia.org/wiki/Boeing_B-17_Flying_Fortress" id="mwASI" rel="mw:WikiLink" title="Boeing B-17 Flying Fortress">B-17s</a> assisting in the Soviet <a href="https://en.wikipedia.org/wiki/Red_Army" id="mwASM" rel="mw:WikiLink" title="Red Army">Red Army</a>'s <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Vistula–Oder_Offensive" id="mwASQ" rel="mw:WikiLink" title="Vistula–Oder Offensive">Vistula–Oder Offensive</a>.