Hitler considered himself a military man and as a result he tended to admire and identify with the great military men of history and he held a great respect for people like Petain and Leon Degrell. Hitler absolutely adores the ancient Spartans. In mein Kampf he compares the Germans in world war 1 who died in France and Belgium to the Spartans who died at Thermopylae. Hitler compared the Germans to King Leonidas and his Spartans while claiming that the traitor who gave away their position was represented the defeatist attitude of the German people (the stab in the back myth). On the other hand he disliked the Greeks who he felt preferred easy living over fighting. He held the modern Greeks in high esteem as he considered them the descendants of the ancient Greeks he admired.

Sources:

Mein Kampf