As calls for a ceasefire grow amongst the International community, more rockets are flying between Israel, Palestine and neighboring countries.

Israeli Prime Minister Benjamin Netanyahu promises to keep attacking the Gaza Strip and says he is "determined to continue this operation until its aim is met."

Over 3,150 rockets have been fired by the Palestinian militant group Hamas from Gaza into Israel over the last week.

Israeli officials say their missile defense system, called the Iron Dome, intercepts approximately 90% of the rockets fired its way, CBS News reports.

Israel declared the system operational in 2011 and officials say the rockets have killed 12 people in Israel during the latest clashes with Hamas.

Meanwhile, without this same kind of defense system, over 200 people have been killed by Israeli rockets in Palestine, according to their Health Ministry.

The Iron Dome air defense system is made up of a network of batteries that each have their own radar, command-and-control center and launchers.

There are 10 batteries deployed across Israel, each is intended to cover 60 square miles.

Using radar and advanced tracking technology to follow the path of incoming rockets, the Iron Dome determines if the object is a threat.

After measuring the speed and direction of the incoming rocket, the Dome fires a missile that intercepts the rocket by blowing it up mid-air.

The defense system mainly works on short-range rockets traveling between 500 and 1,000 miles per hour and is used to intercept rockets headed to populated areas.

Israel's Iron Dome was built and maintained with $1.6 billion in U.S. funding.

But with a defense system like the Iron Dome, how can outsiders still attack Israel?

By launching hundreds to thousands of rockets at the Dome, militant groups are attempting to overwhelm the system.

But militants are also using tunnels into Israel as methods to move supplies and attack. 

The Israeli Defense Forces (IDF) says they plan to expand their attacks on Hamas' tunnels, many of which run under homes and buildings with civilians inside.

Experts think the latest escalation in violence between Israel and Palestine could boost the Iron Dome's demand in the international market.

Several countries like the United Arab Emirates and India have looked into buying the system, the Wall Street Journal reports. 

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