This year's 2018 annual Sister Cities International Conference will be held in Aurora, Colorado from August 2nd to August 4th.
This year's theme is "Cities Leading the Way". For more information and to register, click here: http://www.cvent.com/events/2018-annual-conference-and-youth-leadership-summit/event-summary-580b036c3e6444358550435f18c66174.aspx