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: United Nations (CNN) The Trump administration's new US ambassador to the United Nations strongly denounced Russia and China for vetoing a resolution against Syria on Tuesday. The latest attempt to punish Syrian regime leaders failed after the two permanent members voted against a resolution to impose sanctions for Damascus' use of chemical weapons, the first vetoes by Russia and China before US Ambassador Nikki Haley. "Russia and China made an outrageous and indefensible choice today," Haley said, speaking in the Security Council chamber after the vote. "It is a sad day on the Security Council when members start making excuses for other member states killing their own people."It was Russia's seventh veto of a Security Council resolution against SyriaThe resolution would have condemned the use of chemical weapons in Syria 
 Question:Before the veto, French _ Ambassador Francois Delattre said, "It's a moment of truth."

United Nations