From the blood spilled in streets of Paris to San Bernardino shootings, the world in 2015 showed its vulnerability to brand of terror perpetrated by Islamic State jihadists.
Attackers attacked a Shiite Muslims gathered for a religious procession in Bangladesh's capital before dawn, killing a teenage boy and injuring more than 100 other people. The ISIS claimed responsibility for the attack, along with the attacks on an
Two bomb explosions targeted a peace rally by leftist and Kurdish activists in the Turkish capital of Ankara, killing 86 people and wounding 186. ISIS claimed responsibility for the attack.
A Russian plane with 224 people on board was brought down by the ISIS in a mountainous part of Egypt's Sinai Peninsula on October. The incident was eventually responsible for increasing the Russian intervention in Syria against ISIS.
The Islamic State also drew international outrage for destroying historical structures in Palmyra that were over 2000-year-old. UNESCO termed the destruction of the temple a war crime.
Earlier in June a gunman disguised as a tourist opened fire at a Tunisian hotel with a rifle he had hidden in an umbrella, killing 39 people including Britons, Germans and Belgians as they lounged at the beach in an attack claimed by Islamic State.
ISIS affiliates have claimed at least four attacks on Saudi mosques since May. In December, Saudi Arabia announced the creation of a 34-country coalition dedicated to fighting IS, but a coordinated international strategy to combat the threat the
The last 12 months have shown that security forces in the countries targeted, despite beefed-up resources, are struggling. Three coordinated teams of gunmen and suicide bombers carried out a wave of attacks across Paris killing 129 people, in what
The added threat comes from hardened jihadists such as the Kouachi brothers who, though not directly involved with ISIS, in January carried out the attack on the office of satirical newspaper Charlie Hebdo killing 12 people. Said and Cherif Kouachi
Syed Farook and Tashfeen Malik killed 14 people in San Bernardino (Photo: AP/File)
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Over past 12 months, the group that took root in Iraq and in chaos of Syrian war has turned its focus from territorial gains to hitting at "distant enemies".