I want to know the answer to the following question:
What did Chancellor Willy Brandt propose in his  28 October 1969 address?
All the background I'm provided with is that "In his investiture address, given on 28 October 1969 in Bonn, Chancellor Willy Brandt proposed that the government would consider Article 29 of the Basic Law as a binding order.". Is that enough to answer the question?