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: (CNN) Japanese Prime Minister Shinzo Abe and President Barack Obama will honor those who died at Pearl Harbor on Tuesday, appearing together 75 years after Japan's attack on Hawaii. "The two leaders' visit will showcase the power of reconciliation that has turned former adversaries into the closest of allies, united by common interests and shared values," according to a White House statement. Abe's visit comes seven months after Obama's historic trip to Hiroshima in which he became the first sitting US president to visit the site where the United States dropped a nuclear bomb in 1945. Abe had implied his visit was in return for Obama visiting Hiroshima.Abe's visit comes seven months after Obama's trip to HiroshimaThe two leaders will meet Tuesday to discuss US-Japan relations 
 Question:Since assuming office in 2009, Obama had put US-_ relations high on his agenda.

Japanese