&amp;lt;strong&amp;gt;September 28:&amp;lt;/strong&amp;gt; U.S. President Barack Obama reaches out to shake the hand of Russian President Vladimir Putin at a U.N. summit in New York. The two, bitterly at odds over Ukraine and Syria, &amp;lt;a href=&amp;quot;http://www.cnn.com/2015/09/28/politics/obama-putin-meeting-syria-ukraine/&amp;quot; target=&amp;quot;_blank&amp;quot;&amp;gt;also had a closed-door meeting&amp;lt;/a&amp;gt; that day.