Nato explained in pictures

By Levi Jouavel
Newsbeat Reporter

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image source, Getty Images

Donald Trump is in the UK to attend the Nato summit in Watford.

This year's conference marks the 70th anniversary of the organisation.

Here are some of the standout moments from its past which explain more about how it works.

Tell me more... so, what is Nato?

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image captionPresident Harry Truman signing the Nato treaty in 1949

The North Atlantic Treaty Organisation (Nato) was set up as a defence alliance against the Soviet Union and to contain the spread of communism - a political ideology - across Europe.

It was formed in 1949, after the Second World War, and originally made up of 12 member countries.

There's a more detailed explanation of the alliance's history here.

image source, Getty Images
image captionJens Stoltenberg at a press conference at the Nato headquarters

The current Secretary General is Jens Stoltenberg, former prime minister of Norway.

He's been in the role since 2014 and is the 13th person to hold the office.

image source, Getty Images
image source, Getty Images

Nato members promise to pay 2% of their GDP on defence spending.

The US contributes most, and President Trump has pressured other member states to increase their spending.

image source, Getty Images
image captionPoland's Prime Minister Jozef Cyrankiewicz signing the Warsaw Pact

In 1955, the Soviet Union created a counter-alliance called the Warsaw Pact, made up of communist countries.

Nato and the Warsaw Pact had opposing political beliefs, which fed into the Cold War that started pretty much straight after World War Two.

The Warsaw Pact later dissolved after the collapse of the USSR in 1991.

Here's a look at some of the main events that have occurred over the 70 years.

Kosovo War

image source, Getty Images
image source, Getty Images

Nato launched an 11-week bombing campaign over Serbia that ended the Kosovo War in 1999.

The strikes aimed to prevent the ethnic cleansing of Kosovo Albanians in Serbia.

Ethnic cleansing is the mass killing of members of one ethnic or religious group in an area by another ethnic or religious group in that same area.

9/11 Attacks

image source, Getty Images
image source, Getty Images

The Article 5 defence was invoked after the 9/11 attacks in the US in 2001.

This was the first and only time in its history it has been used.

It is a collective defence that says an attack on one ally should be considered as an attack on all allies.


image source, Getty Images

Nato's first major mission outside Europe was providing security in Kabul, Afghanistan in 2003.

Their main role was to assist the Afghan government to create a secure and stable environment.

image source, Anadolu Agency

There are now 29 member countries.

Leaders from each country will attend the Nato 2019 summit on 4 December.

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