Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: WASHINGTON (CNN) -- President Richard M. Nixon and his Brazilian counterpart, Emilio Medici, in 1971 discussed ways their countries could work together to overthrow the socialist government of Salvador Allende in Chile, according to a newly declassified document. President Richard M. Nixon, right, and his Brazilian counterpart, Emilio Medici. During a meeting of the two leaders at the White House on December 9 of that year, Medici was discussing the possibility of a coup by the Chilean military with assistance from Brazilian military officers when Nixon said that it was "very important that Brazil and the United States work closely in this field," according to the document.Document shows Richard M. Nixon, Emilio Medici had like-minded goalsIt says two leaders met at White House, Nixon offered money or other discreet aidCIA memo says Brazilian general thought U.S. wanted Brazil "to do the dirty work"Memo, other documents were declassified in July of this year as part of project 
 Question:The newly published documents do not offer any conclusive proof of Brazilian involvement in the _ coup of 1973, which the Nixon administration supported.

Chile