Drag and drop the events to place them in the order that occurred first to the order that occurred last.

Answers:
Civil war broke out between ethnic and religious groups.
The United States joins with others to win back Iraqi territories from ISIS.
Saddam Hussein is removed from power.
The Islamic States In Iraq and Syria (ISIS) becomes a threat.

Saddam Hussein is removed from power.

Civil war broke out between ethnic and religious groups.
The Islamic States In Iraq and Syria (ISIS) becomes a threat.
The United States joins with others to win back Iraqi territories from ISIS.

1. Saddam Hussein is removed from power.

2. Civil war broke out between ethnic and religious groups.
3. The Islamic State in Iraq and Syria (ISIS) becomes a threat.
4. The United States joins with others to win back Iraqi territories from ISIS.

To answer this question and place the events in chronological order, we need to review the information provided for each event.

1. Saddam Hussein is removed from power.
2. The Islamic State In Iraq and Syria (ISIS) becomes a threat.
3. Civil war breaks out between ethnic and religious groups.
4. The United States joins with others to win back Iraqi territories from ISIS.

Now, let's arrange the events in the order they occurred:

1. Saddam Hussein is removed from power.
2. The Islamic State In Iraq and Syria (ISIS) becomes a threat.
3. Civil war breaks out between ethnic and religious groups.
4. The United States joins with others to win back Iraqi territories from ISIS.

Thus, the events in chronological order are as follows:

1. Saddam Hussein is removed from power.
2. The Islamic State In Iraq and Syria (ISIS) becomes a threat.
3. Civil war breaks out between ethnic and religious groups.
4. The United States joins with others to win back Iraqi territories from ISIS.