AlHijjah 25, 1432, Nov 21, 2011, SPA - The World Travel & Tourism Council (WTTC) today announced that it will hold its 13th Global Summit in Abu Dhabi in April/May 2013. Abu Dhabi Tourism Authority (ADTA) and Etihad Airways will be official hosts of the biggest annual gathering of travel & tourism leaders. A Memorandum of Understanding between WTTC, ADTA and Etihad has been signed in the UAE capital. Moreover, WTTC will host its 12th Global Summit in Tokyo/Sendai on April 16-19, 2012, the UAE news agency "WAM" reported.