Battle of Wizna
...that during the 1939 Battle of Wizna in Poland, German planes dropped leaflets asking the Poles to surrender?
...that during the <a href="./1939" id="mwAiY" rel="mw:WikiLink" title="1939">1939</a> <b id="mwAic"><a href="./Battle_of_Wizna" id="mwAig" rel="mw:WikiLink" title="Battle of Wizna">Battle of Wizna</a></b> in <a href="./Poland" id="mwAik" rel="mw:WikiLink" title="Poland">Poland</a>, German planes dropped <a href="./Pamphlet" id="mwAio" rel="mw:WikiLink" title="Pamphlet">leaflets</a> asking the Poles to surrender?