Complex sentence: The three islands gained their current status following the dissolution of the Netherlands Antilles on 10 October 2010, while at the same time the islands of Curaçao and Sint Maarten became autonomous countries within the Kingdom of the Netherlands.
Split into simpler sentences: The three islands gained their current status following the dissolution of the Netherlands Antilles on 10 October 2010. At the same time, the islands of Curaçao and Sint Maarten became autonomous countries within the Kingdom of the Netherlands.