(CNN) -- Syrian warplanes reportedly targeted Iraq this week. Scores of civilians were killed at markets and gas stations in Anbar province Tuesday, local leaders told CNN. A militant group called ISIS, the Islamic State in Iraq and Syria, has been pushing into Iraq, shaking the country, its leadership and, in turn, threatening the region. But what does it mean that Syria reportedly is now attacking its neighbor? Here are some answers to get you up to speed: What does ISIS want, and how is that related to Iraq and Syria? ISIS includes mostly Sunni militants who want to create an Islamic state across Sunni areas of Iraq and Syria. In the towns it controls in Syria, it has imposed Sharia law. Women must be covered, music is prohibited, girls and boys must not mingle at school. The group's tactics are so ruthless even al Qaeda has distanced itself. For example, ISIS kidnapped more than 140 Kurdish schoolboys in Syria last month and forced them to take daily lessons in radical Islamic theory, according to the Syrian Observatory for Human Rights, a London-based monitoring group.
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ISIS wants to create an Islamic state across Sunni areas of Iraq and Syria
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Syrian response to ISIS inside its borders has been fairly muted until now
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But Syrian regime bombed ISIS positions in Syria recently and reportedly bombed in Iraq
Regrouping and strengthening in @placeholder, ISIS became well-financed and highly organized.