The Washington Post reports: After three decades of persecution that virtually eradicated its presence, the Syrian Muslim Brotherhood has resurrected itself to become the dominant group in the fragmented opposition movement pursuing a 14-month uprising against President Bashar al-Assad.

Exiled Brotherhood members and their supporters hold the biggest number of seats in the Syrian National Council, the main opposition umbrella group. They control its relief committee, which distributes aid and money to Syrians participating in the revolt. The Brotherhood is also moving on its own to send funding and weapons to the rebels, who continued to skirmish Saturday with Syrian troops despite a month-old U.N.-brokered cease-fire.

The revival marks an extraordinary comeback for an organization that was almost annihilated after the last revolt in Syria, which ended in the killing by government forces of as many as 25,000 people in the city of Hama in 1982. Only those who managed to flee abroad survived the purge.

The Brotherhood’s rise is stirring concerns in some neighboring countries and in the wider international community that the fall of the minority Alawite regime in Damascus would be followed by the ascent of a Sunni Islamist government, extending into a volatile region a trend set in Egypt and Tunisia. In those countries, Brotherhood-affiliated parties won the largest number of parliamentary seats in post-revolution elections.

Brotherhood leaders say they have been reaching out to Syria’s neighbors, including Jordan, Iraq and Lebanon — as well as to U.S. and European diplomats — to reassure them that they have no intention of dominating a future Syrian political system or establishing any form of Islamist government.

“These concerns are not legitimate when it comes to Syria, for many reasons,” said Molham al-Drobi, who is a member of the Brotherhood’s leadership and sits on the Syrian National Council’s foreign affairs committee.

“First, we are a really moderate Islamic movement compared to others worldwide. We are open-minded,” Drobi said. “And I personally do not believe we could dominate politics in Syria even if we wanted to. We don’t have the will, and we don’t have the means.”