You can use the Kiwi Syslog Forwarder for Windows to get syslog versions of the logs into Kiwi. However, the LEM Agent isn't really going to know with what to do with syslogged-Windows logs, so you're not going to get the Reporting and Alerting from LEM that you've come to expect for your US machines.
Really, it sounds like you either need a more stable WAN link or a second LEM appliance at the far-end to collect and correlate those logs.