Most powerful special forces in the world

Here is a selection of five most dangerous special forces in the world.

In a world where everyday news is full of terrorist attacks and organised crime, special forces have an unavoidable role in any nation's security.
Unlike military power, special forces' strengths, abilities and even shortcomings are difficult to measure until they are in action. Many of the missions of these special forces are covert and details of those are not published.
Highly effective selection process, hectic training, modern and state-of-the-art equipment and many more factors decide the success of special forces. While the military power can be measured by the human strength and number of air, naval and land forces' equipment it is not possible for the special forces.
Here is a selection of most dangerous special forces in the world. The selection is a compilation from various sources, which differ in their opinions.

SAS
British Army's Special Air Services are undoubtedly among the most dangerous and have been an influential model for other countries in the formation of similar forces. Formed as a unit of British Army in 1941, SAS advanced further in the later years.
A cross country march of 64km with full equipment, hill climbing, swimming, testing jungle survival skills and resistance to interrogation include the selection process.
SAS has proved its mettle in many actions around the world. The selection and training process makes it the best among the world's special forces.

US Navy SEALs
The US Navy's Sea, Air and Land Teams are part of the US Naval Special Warfare Command and US Special Operations Command.
The birth of US Navy SEALs can be traced back to 1942 formation of Scouts and Raiders group for special operations. Later in 1961, John F Kennedy paved way to the formation of SEALs and the special forces took a decisive role in Vietnam war. It also took part in Iran-Iraq war, Gulf Wars and Afghanistan war. Most recently, SEALs were in news in 2011 for the killing of Osama bin Laden.
In 2015, it was announced that SEALs would recruit women to the forces if they can pass the tough training session. Considered that the dropout rate of men in during the training phase is more than 80 per cent, this could be rigorous.
Shayetet13- Israel
A unit of Israeli defence forces, Shayetet13 specialises in sea-to-land incursions, counter terrorism, sabotage, maritime intelligence gathering and hostage rescue.
The group was formed in 1949, but was not as efficient as today in its first decades. With joint training programmes with US Navy SEALs and other similar forces and most-advanced weaponry, Shayetet13 have grown in capacity and proved its ability in many recent operations in Lebanon, Gaza, Syria and Liberia.
Shayetet13 has a tough 10-month training process which gives them physical and mental power, advanced infantry training and underwater and above water experience.

SSG Pakistan
Pakistan's special operation force Special Services Group is modelled after British SAS and US Navy SEALs and is assessed as one among the best special forces in the world. It has participated in various operations in domestic and international levels after its formation in 1956.
SSG performed key roles in Pakistan's war with India, Soviet-Afghanistan war and operations supporting Saudi Arabia. Now SSG is operational in Pakistan's fight with Taleban and other terrorists.
During its primary years, SSG took training and equipment from US forces and in recent years has acquired most advanced Chinese equipment.
Hard selection methods and training improve the quality of SSG and makes it one of the best.

GIGN - France
France's National Gendarmerie Intervention Group (GIGN) group is trained specifically to respond to hostage situations.
Since its creation in 1974, the group has taken part in more than 1,000 operations and liberated over 500 hostages. During the recent Paris attacks, GIGN was successful in securing hostages in Bataclan Theater attack by Daesh and Al Qaeda hostage situation in Mali's Bamako hotel.