Several hard-line vigilantes tried to disrupt the gathering, which ended without violence.
This year, the gathering, which is marking its second decade as a summer tradition, expands to three nights.
But they are bracing for attacks by militants trying to disrupt the gathering, which begins next Tuesday.
The gathering – which was reportedly "very heated" – focused on introducing tougher criminal penalties following the Cologne attacks.
The draft could change during the gathering, which will include the governors of the central banks of all European Union member states.
Francis Egan, Cuadrilla's chief executive, called the gathering, which attracted more than 200 people and lasted more than four hours, "really, really valuable".
Several of the conference attendees said the gathering, which is in its fourth year, was an effort by General Sherstyuk to build international support for his work.
The gathering, which begins Sunday in western New York, will be addressed by Mr. Reagan via satellite from California, where he is vacationing at his ranch home.
Enraged, Moll runs out on the gathering, which includes Cliff (Trystan Gravelle), the stuffy young police officer who is hoping to make her his girlfriend.
The theme of the gathering, which will include policy and political briefings, is a Brighter Future: Reversing America's Decline, Opening Opportunity for All.
"This is a rough way to begin a relationship," Mr. Wheeler said, according to one lobbyist at the gathering, which was confirmed by the F.C.C.
