Can anyone please answer both questions please. I will award brainleist to the best answers.

True exact date for the withdrawal of american combat troops in iraq was set for august 31st 1. 2011 2. 2010 3. 2012

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 two advances did europeans borrowed from china