Why were darius's elite cavalry and infantry forces known as the immortals?

According to greenville why does great britain have a large debt and who should pay that debt? ?

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.

What was one goal of the whig party