Need script to place line break based on character style

I'm a designer and know very little about scripting or XML, but here goes. I have some XML files I'm formatting for print, and they don't have paragraph returns where they need to be. The returns always need to be before a specific XML tag (that I can change to a specific character style to make it easier to find...). But I don't see a way to do this using the usual InDesign Find/Replace tools, so I assume scripting is going to be the answer. Anyone know how to accomplish this?

Here's an example of the content I'm working with. The breaks need to happen BEFORE each <City> element. I'm using InDesign CS6 on a Mac.

<?xml version="1.0" encoding="UTF-8"?>

<Regions><Region>

BIG BEND COUNTRY<City>

<City_Name>ALPINE                       

</City_Name><Event_Name>

Big Bend Ranch Rodeo                                                                                </Event_Name>

<Date>August 8-9                                                                                                                                                                                                                                                         

</Date><Venue_Name>

Sul Ross State University S.A.L.E. Arena</Venue_Name>

<Website1>www.bigbendranchrodeo.com                                            

</Website1><Phone1>

4323642696</Phone1>

<Phone2></Phone2>

</City><City>

<City_Name>ALPINE                       

</City_Name><Event_Name>

Big Bend Balloon Bash                                                                               </Event_Name>

<Date>August 30-September 1                                                                                                                                                                                                                                                     

</Date><Venue_Name>

Alpine-Casparis Municipal Airport</Venue_Name>

<Website1>bigbendballoonbash.com                                        

</Website1><Phone1>

4328377486</Phone1>

<Phone2></Phone2>

</City><City>

<City_Name>EL PASO                      

</City_Name><Event_Name>

Alfresco! Fridays                                                                                   </Event_Name>

<Date>August 1, 8, 15, 22, 29                                                                                                                                                           

</Date><Venue_Name>

Convention Center Plaza</Venue_Name>

<Website1>www.alfrescofridays.com                                              

</Website1><Phone1>

915/534-0600</Phone1>

<Phone2/></City>

Thanks in advance!