Jumping through a ring of fire. Breaking bricks with your head. Drinking cobra blood.
Those are some examples of what soldiers go through as part of military training.
Check out more intense exercises used around the world in the following gallery.
A soldier from the South Korean special forces demonstrates martial arts during an anti-terror exercise in Incheon, west of Seoul June 13, 2013. North Korea blamed the South on Thursday for scuttling fresh dialogue that aimed to ease tensions between the rival Koreas, saying Seoul deliberately torpedoed reconciliation talks planned for this week.
An armed policeman from the Special Weapons and Tactics (SWAT) smashes a brick by his head at an anti-terrorism drill in Weng'an county, Guizhou province June 5, 2012.
Ahmad Olamaei demonstrates a move to his students, members of Iran's Basij militia, during martial arts training at a mosque in central Tehran September 12, 2010.
Shiite volunteers, who have joined the Iraqi army to fight against the predominantly Sunni militants from the radical Islamic State of Iraq and the Levant (ISIL), demonstrate their skills during a graduation ceremony after completing their field training in Najaf, June 27, 2014.
A Mexican marine slides down a zipline during training at a military base in Chetumal November 16, 2012.
Paramilitary policemen take part in exercises, part of a psychological training programme aimed at relieving anxiety, in Chuzhou, Anhui province, July 23, 2013.
Soldiers attend a yoga class during their training period at 11 Gorkha Rifles Regimental Centre, on a foggy day in the northern Indian city Lucknow December 17, 2008.
South Korean special warfare forces cover themselves in snow during winter mountain training exercises on January 10, 2007 in PyeongChang, South Korea.
A trainee crawls through the Taiwan Marines frogmen 'Road to Heaven' test in Zuoying, Kaohsiung, southern Taiwan, January 19, 2011. The 'Road to Heaven' test, which is the final stage of a nine week intensive Amphibious Training Program, requires trainees to execute various exercises and leopard crawl along a 50 metre long path that is littered with jagged corals and rocks.
A frontier soldier from the People's Liberation Army jumps through a ring of fire as part of training in Heihe, Heilongjiang province, March 5, 2014.
Shi'ite fighters, who have joined the Iraqi army to fight against militants of the Islamic State, take part in field training in the desert in Najaf, south of Baghdad, February 1, 2015.
Servicemen from the Interior Ministry's special unit take part in a test near the village of Gorany, some 32 km (20 miles) west of Minsk, October 23, 2012. Servicemen have to pass several tough tests before being awarded entry to the ministry's elite 'Red Beret' unit, according to the ministry.
Policemen take part in training during the Jungla International Course, in Chicoral near Ibague November 26, 2013. Every year the Colombian police force invites elite law enforcement and military personnel from across Central and South America to participle in this training course.
Soldiers from special force unit 'COE' take part in a military training exercise at the military base, about 17 km (11 miles) west from Managua, June 13, 2007.
Israeli soldiers from the Alpine Unit walk in the snow during a demonstration of their skills for the media on Mount Hermon, near the Israel-Syria border January 22, 2012. The Golan Heights form a strategic plateau between Israel and Syria of about 1,200 square kilometers (460 square miles). Israel captured it in the 1967 Middle East war and annexed it in 1981 in a move not recognised internationally.
A U.S. Marine drinks the blood of a cobra during a jungle survival exercise with the Thai Navy as part of the 'Cobra Gold 2013' joint military exercise, at a military base in Chon Buri province February 20, 2013. About 13,000 soldiers from seven countries, Thailand, U.S., Singapore, Indonesia, Japan, South Korea and Malaysia are participating in the 11-day military exercise.
A U.S. Marine picks out bugs to eat from a bamboo stem during a jungle survival exercise with the Thai Navy as part of the 'Cobra Gold 2012' (CG12) joint military exercise, at a military base in Chon Buri Province February 13, 2012.
Lance-corporal Vinnie Rami, an indigenous soldier from Australia's North West Mobile Force (NORFORCE) unit, carries a shovelnose guitarfish impaled on a spear after hunting on Astell Island, part of the English Company Islands, located inside Arnhem Land in the Northern Territory July 17, 2013. NORFORCE is a surveillance unit that employs ancient Aboriginal skills to help in the seemingly impossible task of patrolling the country's vast northwest coast. NORFORCE's area of operations is about 1.8 million square km (700,000 square miles), covering the Northern Territory and the north of Western Australia. Aboriginal reservists make up a large proportion of the 600-strong unit, and bring to bear their knowledge of the land and the food it can provide. Fish, shellfish, turtle eggs and even insects supplement rations during the patrol, which is on the lookout for illegal foreign fishing vessels and drug smugglers, as well as people smugglers from neighbouring Indonesia. Picture taken July 17, 2013.
Newly recruited female marines take their lunch with fellow soldiers after undergoing drills inside the marine headquarters in the town of Ternate, Cavite city, south of Manila February 5, 2013. There are an estimated 350 women combatants in the 10,000-member Philippine marines who go through the same rigid physical and mental training as their men counterparts. Since 2006, female marine officers of the Marine Corps have been performing in the field of assault armour, field artillery, airborne and other combat duties, a marine officer said. The women have bananas placed on top of their heads in order to maintain their posture. If the banana falls, the new recruit must eat the whole banana, including the peel. Picture taken February 5, 2013.
New recruits of the Chinese People's Liberation Army (PLA) take part in training to adjust their standing postures in Hangzhou, Zhejiang province, October 16, 2013.
Servicemen of a special unit from the Interior Ministry take part in a test near the village of Volovshchina, 25 km (16 miles) west of Minsk, October 22, 2009. Servicemen have to pass several tough tests before being awarded entry to the ministry's elite 'Red Beret' unit.
Members of the Dutch Royal Guard of Honour guide their horses through smoke during a rehearsal ahead of the Dutch 2014 budget presentation, at the beach of Scheveningen September 16, 2013.
U.S. Military Member Mike Forsythe, and his dog, Cara, break the world record for 'highest man/dog parachute deployment' by jumping from 30,100 feet in this undated image released by the Canadian company 'K9 Storm Inc.' which manufactures tactical body armour for military dogs.
German policemen, aspirants for Berlin´s special police force SEK (Spezialeinsatzkommando) assemble a gun during an underwater drill in a Berlin police barracks, December 13, 2005.
Lebanese soldiers take aim during a training session on the 'Engagement Skills Trainer' program provided by the U.S. embassy in Lebanon to the Lebanese Armed Forces at the Engineering Regiment Base in Warwar, near Beirut, July 20, 2010. The EST 2000 program provides the LAF with the capability to train soldiers virtually on all aspects of firearms training without the expense or potential danger of using live ammunition.
Saudi special forces during a ceremony as they prepare for the influx of people to participate in the Hajj, in Arafat 15 kms outside of Mecca, Saudi Arabia, Wednesday, Nov. 10, 2010.
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