Simplify the following text for a Grade 10 native English-speaking person.
Original: In March 1919 , the national assembly passed a law founding a 420,000 strong preliminary army as VorlÃ ufige Reichswehr .
Simplified: In March 1919 , the national assemby passed a law founding a 420,000 strong preliminary army as VorlÃ ufige Reichswehr .