Just put this timeline together, showing the events of the Sky Raider Trilogy and The Stazhlekh Report in context with the Five Frontier Wars.

589-604 First Frontier War

615-620 Second Frontier War

819 - Worlds forming the League of Suns break away from Dominion of Alntzar.

979-986 Third Frontier War

1082-1084 Fourth Frontier War

1088 - Desaekhe begins Industrialisation.

1088 - 1103 Descarothe Hegmony expands

1105 Dispute between League and Hegmony over Quarant

1107 Fifth Frontier War Starts (187-1107) (Legend of the Sky Raiders 347-1107)

1108 Crisis between League and Hegmony leading to war (Trail of the Sky Raiders 148-1108/Fate of the Sky Raiders 295-1108/The Stazhlekh Report 328-1108) 

Not sure how useful this will prove, but thought it worth sharing.