A girl wearing a traditional costume of one of Myanmar's ethnic groups holds a U.S flag ahead of the opening ceremony of the 25th Association of Southeast Asian Nations (ASEAN) summit in Naypyitaw November 12, 2014. World leaders will descend on the capital of Myanmar this week, an event unthinkable over almost half a century of military rule, amid concern reforms that opened the country to international engagement have gone into reverse. REUTERS/Damir Sagolj (MYANMAR - Tags: POLITICS)