Female soldiers are not rare in Israel. Even female combat soldiers are becoming normal.
Arab solders and combat soldiers are not rare either with entire clans of Druze and Bedouin controlling the most decorated front units.
But a Christian Arab female combat soldier is new:
Cpl. Elinor Joseph was born and raised in an integrated neighborhood of Jews and Arabs in Haifa, but attended a school in which all her classmates were Arab. She later moved to Wadi Nisnas, an Arab neighborhood where she currently lives. Despite the fact that she would always wear her father’s IDF dog-tag around her neck from when he served in the Paratrooper’s Unit, she never thought she would enlist. “I wanted to go abroad to study medicine and never come back,” she said. To her father it was clear that she would enlist in the IDF, as most citizens in Israel do. This was something that worried her very much.
http://dover.idf.il/IDF/English/News/Up_Close/10/07/2601.htm
And she is drop-dead gorgeous! 
“I decided to go head-to-head, to check who my true friends are, to do something in life that I have never done before. I understood that it was most important to defend my friends, family, and country. I was born here.” At the end of the day, she says she realized it was the right thing to do, “With time, when you do things from the heart, you begin to understand their importance.”
And as extra, while we are talking about Arabs in the IDF, this video (hat tip to Nizo):
http://www.youtube.com/watch?v=gDforETfMBE
It's a form of Arab on-the-spot poetry in which one man sings about the greatness of another standing in front of him. The two are a Druze and a Bedouin respectively.