Please answer the following question: Extract the answer to the question from the following context. Question: Calling up individuals to serve for millitary service is described as doing what action? Context: International tribunals and arbiters are often called upon to resolve substantial disputes over treaty interpretations. To establish the meaning in context, these judicial bodies may review the preparatory work from the negotiation and drafting of the treaty as well as the final, signed treaty itself.
Answer:
drafting