Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
List of ambassadors of the United States to Japan
Table title:
List of chiefs of mission
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Name </th><th colspan=1 rowspan=1 > Presented credentials </th><th colspan=1 rowspan=1 > End of term </th><th colspan=1 rowspan=1 > End of date </th></tr>
<tr> <td colspan=1 rowspan=1 > Luke E. Wright </td><td colspan=1 rowspan=1 > May 26, 1906 </td><td colspan=1 rowspan=1 > Left Japan </td><td colspan=1 rowspan=1 > August 13, 1907 </td></tr>
<tr> <td colspan=1 rowspan=1 > Thomas J. O'Brien </td><td colspan=1 rowspan=1 > October 15, 1907 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > August 31, 1911 </td></tr>
<tr> <td colspan=1 rowspan=1 > Charles Page Bryan </td><td colspan=1 rowspan=1 > November 22, 1911 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > October 1, 1912 </td></tr>
<tr> <td colspan=1 rowspan=1 > Larz Anderson </td><td colspan=1 rowspan=1 > February 1, 1913 </td><td colspan=1 rowspan=1 > Left Japan </td><td colspan=1 rowspan=1 > March 15, 1913 </td></tr>
<tr> <td colspan=1 rowspan=1 > George W. Guthrie </td><td colspan=1 rowspan=1 > August 7, 1913 </td><td colspan=1 rowspan=1 > Died at post </td><td colspan=1 rowspan=1 > March 8, 1917 </td></tr>
<tr> <td colspan=1 rowspan=1 > Roland Morris </td><td colspan=1 rowspan=1 > October 30, 1917 </td><td colspan=1 rowspan=1 > Left Japan </td><td colspan=1 rowspan=1 > May 15, 1920 </td></tr>
<tr> <td colspan=1 rowspan=1 > Charles B. Warren </td><td colspan=1 rowspan=1 > September 24, 1921 </td><td colspan=1 rowspan=1 > Left Japan </td><td colspan=1 rowspan=1 > January 28, 1923 </td></tr>
<tr> <td colspan=1 rowspan=1 > Cyrus Woods </td><td colspan=1 rowspan=1 > July 21, 1923 </td><td colspan=1 rowspan=1 > Left Japan </td><td colspan=1 rowspan=1 > June 5, 1924 </td></tr>
<tr> <td colspan=1 rowspan=1 > Edgar Bancroft </td><td colspan=1 rowspan=1 > November 19, 1924 </td><td colspan=1 rowspan=1 > Died at post </td><td colspan=1 rowspan=1 > July 27, 1925 </td></tr>
<tr> <td colspan=1 rowspan=1 > Charles MacVeagh </td><td colspan=1 rowspan=1 > December 9, 1925 </td><td colspan=1 rowspan=1 > Left Japan </td><td colspan=1 rowspan=1 > December 6, 1928 </td></tr>
<tr> <td colspan=1 rowspan=1 > William Castle, Jr. </td><td colspan=1 rowspan=1 > January 24, 1930 </td><td colspan=1 rowspan=1 > Left Japan </td><td colspan=1 rowspan=1 > May 27, 1930 </td></tr>
<tr> <td colspan=1 rowspan=1 > W. Cameron Forbes </td><td colspan=1 rowspan=1 > September 15, 1930 </td><td colspan=1 rowspan=1 > Left Japan </td><td colspan=1 rowspan=1 > March 22, 1932 </td></tr>
<tr> <td colspan=1 rowspan=1 > Joseph Grew </td><td colspan=1 rowspan=1 > June 14, 1932 </td><td colspan=1 rowspan=1 > American declaration of war </td><td colspan=1 rowspan=1 > December 8, 1941 </td></tr>
<tr> <td colspan=1 rowspan=1 > William J. Sebald </td><td colspan=1 rowspan=1 > 1945 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1952 </td></tr>
<tr> <td colspan=1 rowspan=1 > Robert D. Murphy </td><td colspan=1 rowspan=1 > May 9, 1952 </td><td colspan=1 rowspan=1 > Relinquished Charge </td><td colspan=1 rowspan=1 > April 28, 1953 </td></tr>
<tr> <td colspan=1 rowspan=1 > John M. Allison </td><td colspan=1 rowspan=1 > May 28, 1953 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > February 2, 1957 </td></tr>
<tr> <td colspan=1 rowspan=1 > Douglas MacArthur II </td><td colspan=1 rowspan=1 > February 25, 1957 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > March 12, 1961 </td></tr>
<tr> <td colspan=1 rowspan=1 > Edwin Reischauer </td><td colspan=1 rowspan=1 > April 27, 1961 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > August 19, 1966 </td></tr>
<tr> <td colspan=1 rowspan=1 > U. Alexis Johnson </td><td colspan=1 rowspan=1 > November 8, 1966 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > January 15, 1969 </td></tr>
<tr> <td colspan=1 rowspan=1 > Armin H. Meyer </td><td colspan=1 rowspan=1 > July 3, 1969 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > March 27, 1972 </td></tr>
<tr> <td colspan=1 rowspan=1 > Robert Stephen Ingersoll </td><td colspan=1 rowspan=1 > April 12, 1972 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > November 8, 1973 </td></tr>
<tr> <td colspan=1 rowspan=1 > James D. Hodgson </td><td colspan=1 rowspan=1 > July 19, 1974 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > February 2, 1977 </td></tr>
<tr> <td colspan=1 rowspan=1 > Mike Mansfield </td><td colspan=1 rowspan=1 > June 10, 1977 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > December 22, 1988 </td></tr>
<tr> <td colspan=1 rowspan=1 > Michael Armacost </td><td colspan=1 rowspan=1 > May 15, 1989 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > July 19, 1993 </td></tr>
<tr> <td colspan=1 rowspan=1 > Walter Mondale </td><td colspan=1 rowspan=1 > September 21, 1993 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > December 15, 1996 </td></tr>
<tr> <td colspan=1 rowspan=1 > Thomas S. Foley </td><td colspan=1 rowspan=1 > November 19, 1997 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > April 1, 2001 </td></tr>
<tr> <td colspan=1 rowspan=1 > Howard Henry Baker, Jr. </td><td colspan=1 rowspan=1 > July 5, 2001 </td><td colspan=1 rowspan=1 > Farewell address </td><td colspan=1 rowspan=1 > February 17, 2005 </td></tr>
<tr> <td colspan=1 rowspan=1 > Tom Schieffer </td><td colspan=1 rowspan=1 > April 11, 2005 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > January 20, 2009 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > John Roos </td><td colspan=1 rowspan=1 > August 20, 2009 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > August 12, 2013 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Caroline Kennedy </td><td class="highlighted"  colspan=1 rowspan=1 > November 12, 2013 </td><td colspan=1 rowspan=1 > Left Post </td><td colspan=1 rowspan=1 > January 18, 2017 </td></tr>
<tr> <td colspan=1 rowspan=1 > William F. Hagerty </td><td colspan=1 rowspan=1 > July 27, 2017 </td><td colspan=1 rowspan=1 > present </td><td colspan=1 rowspan=1 > — </td></tr>
</table>
Question:
What happened to Kennedy and John Roos in 2013?
Answer:
In 2013, Kennedy succeed John Roos as United States Ambassador to Japan.