By Michael Georgy
DUBAI, Dec 17 (Reuters) - The shooting attack at a Jewish Hanukkah event at Sydney's Bondi Beach put the spotlight on Islamic State, which police said appeared to inspire the gunmen.
The men accused of carrying out Australia’s worst mass shooting in nearly 30 years had spent time in the Philippines, where Islamic State-linked networks are known to operate.
WHAT IS ISLAMIC STATE?
The Sunni Muslim group emerged in Iraq and Syria and quickly created a "caliphate", declaring its rule over all Muslims and largely displacing al Qaeda.
At the height of its power from 2014-2017 it held swathes of the two countries, ruling over millions of people. It had a base only a 30-minute drive from Baghdad, and also held the city of Sirte on Libya's Mediterranean coast.
On its territory Islamic State sought to rule like a centralised government, imposing its interpretation of Islamic Sharia law strictly and deploying shocking brutality including public executions and torture.
Its fighters also carried out or inspired attacks in dozens of cities around the world.
The caliphate eventually collapsed in Iraq and in Syria after a sustained military campaign by a U.S.-led coalition.
WHERE DOES IT NOW OPERATE?
After being ousted from its bases in the Syrian city of Raqqa and the Iraqi city of Mosul, the group took refuge in the hinterlands of the two fractured countries.
It retains a significant presence in Syria and Iraq, parts of Africa including the Sahel region, and in Afghanistan and Pakistan.
Fighters are scattered in autonomous cells, IS leadership is clandestine and its overall size is hard to quantify. The U.N. estimates a membership of 10,000 in IS heartlands.
Many foreign fighters have joined Islamic State's Khorasan branch (ISIS-K), named after an old term for the region that included parts of Iran, Turkmenistan and Afghanistan.
In the Philippines Islamic State affiliates remain active in southern areas, especially Mindanao, where pro-Islamic State militants controlled the city of Marawi in 2017.
WHAT ARE ITS GOALS AND TACTICS?
Islamic State wants to spread its extreme form of Islam, but has adopted new tactics since the collapse of its forces and a string of other setbacks in the Middle East.
It is now a disparate group often operating through affiliates and sympathisers.
But it has retained the ability to carry out high-profile attacks, which it claims on its Telegram channels, often posting images as part of its plan to spread terror.
While Islamic State militants operating across several regions share an ideology, there are no signs that they exchange weapons or financing.
The U.S. military believes the group's current leader is Abdulqadir Mumin, who heads the Somalia branch.
WHERE HAS IT CARRIED OUT RECENT ATTACKS?
Islamic State continues to strike and plot in Syria, where the government announced last month it had signed a cooperation agreement with the U.S.-led coalition combatting the group.
This month, two U.S. soldiers and a civilian interpreter were killed in Syria by a member of the Syrian security forces suspected of sympathising with Islamic State.
In August, IS claimed responsibility for an attack on a checkpoint in eastern Syria that killed five members of the Kurdish-led Syrian Democratic Forces.
Islamic State has also carried out attacks in Africa, showing it still has a global reach.
In October, it claimed responsibility for an attack that a U.N. mission said had killed at least 43 worshippers during a night mass at a church in eastern Congo.
In February, a military official said Islamic State had attacked military bases in Somalia's northeastern Puntland state with suicide car and motorbike bombs, triggering airstrikes that killed 70 militants.
(Writing by Michael Georgy; Editing by Aidan Lewis)
