Answer:
An alliance is a union or association formed for mutual benefit, usually between countries or other organizations. This is seen as one of the causes of WW1 because countries involved in the developing conflict brought their allies into it as well. Serbia relied on their allies such as Russia, France, and Britain, while Austria called on the Ottoman Empire and Germany.
Answer:
The British warship Leopard fired on the US ship Chesapeake which killed 3 Americans
1) Four flights were hijacked. Two crashed into the World Trade Center towers, one crashed into the Pentagon, and one was going for an undisclosed target, but ended up crashing into a field in Pennsylvania. Over 2,000 lives were lost.
2) The War on Terrorism began which is still going on to this day. Airlines now have more security measures, the 24 hour news cycle began, and the Patriot Act was enacted.
3) First responders are dealing with mental and physical health issues from responding to the attacks. They have trauma from what they saw when responding, and have been getting illnesses like cancer from all the dust and asbestos at the attack sites. The death toll from the attacks is still rising due to this