Note: By request, this event has been pushed back to October to ensure it doesn't clash with the Cryptic Temporal Event. The new start date for this event is Saturday, October 2nd to Friday, October 8th.
The web-based game is still open for you to play though, so you now have a month to get the right answers and be in with a chance of winning 100 million EC.
Here is the Liberation game link: https://www.srs-fleet.net/liberation
Here is the page to the week-long event: https://www.srs-fleet.net/liberation-main-page
You may need to refresh your page to see the updated dates.