Riddle. UNIT 6Online version Let’s decipher this riddle together and find out what will play the lead in this lesson. You have three clues to discover what lays behind the orange squares, the first one France ____________ war on Prussia on July 19, 1870. On July 28th 1914 by Elsa LL 1 France ____________ war on Prussia on July 19, 1870. On July 28th 1914 Hints 1 synonym of announce 2 similar in Spanish