 Complete the following sentence: De Brinon was invited by the German supreme general staff to the Eastern Front, as president of the committee of the Legion of French Volunteers against Bolshevism LVF, to visit the exhumation of the bodies of the Polish victims in the Eastern Front, de Brinon was invited by the German supreme general staff to the Eastern Front, as president of the committee of the Legion of French Volunteers against Bolshevism LVF, to visit the exhumation of the bodies of the Polish victims in the Eastern Front, as president of the committee of the Legion of French Volunteers against Bolshevism LVF, to visit the exhumation of the bodies of the Polish victims in the Eastern Front, as president of the committee of the Legion of French Volunteers against Bolshevism LVF, to visit the exhumation of the bodies of the Polish victims in the Eastern Front, as president of the committee of the Legion of French Volunteers against Bolshevism LVF, to visit the exhumation of the bodies of the Polish victims in the Eastern : Igbó Katyn ní April 1943. 