Paradox Entertainment have released two new developer trailers that also detail gameplay in the upcoming WWII strategy title Hearts of Iron III.

This next Grand Strategy title to be released from the Paradox Interactive development team marks the third instalment in the critically acclaimed Hearts of Iron series.

The Hearts of Iron franchise has become renowned for being one of the biggest and most detailed strategic game series on World War II ever made. Hearts of Iron III looks set to follow that tradition closely, while focusing on satisfying veteran players through a multitude of brand new features and systems, including a huge map with more than 10,000 provinces.

For more information, check out the videos after the break. Hearts of Iron III is set for a Q3 2009 release exclusively for PC.