http://www.theatlantic.com/static/infocus/wwi/

The direct cause of the WWI is the assassination of Archduke Franz Ferdinand, an Austria- Hungary prince.

http://www.theatlantic.com/static/infocus/wwi/

It was the first time that tank was used in war. One of the soldiers sat on the side road and lifted a wooden stick with a New Zealand hat on the top. ( Picture was taken in France)

http://www.theatlantic.com/static/infocus/wwi/wwisea/

The first time that an aircraft was ever departed by catapulting from a warship. The structure of the aircraft is simple, because airplane had just been invented one decade ago, and this new technology had already been used in war.

http://www.theatlantic.com/static/infocus/wwi/wwisoldiers/

Soldiers in the trench, some are wounded, some are dead and some are alive but they are terrified. Life was extremely brutal for soldiers.

http://www.theatlantic.com/static/infocus/wwi/westernfront1/

The soldier in trench was writing a letter home. None of the soldiers wanted to keep fighting this slow brutal and nasty fight. All they wanted to do is going home safely.

http://www.theatlantic.com/static/infocus/wwi/wwisoldiers/

The women, part of the telephone operators, sat in a signal  room to answer the calls. The signal room is located less 2 miles from the trenches. Women had made lots of contributions in WWI.

http://www.theatlantic.com/static/infocus/wwi/wwisoldiers/

Some people could not take part in the war as soldiers, but they played an unique role in WWI, the volunteers of Red Cross. They took care of a number of the wounded soldiers.

http://www.theatlantic.com/static/infocus/wwi/century/

Some places are still dangerous from unexploded  WWI munitions, even though the war had ended for 100 years.