The show of aggression from Kim Jong-un’s forces coincides with the 105th anniversary of the state’s founding father Kim Il-sung, a celebration known as the ‘Day of the Sun’.
Dictator Kim Jong-un was in attendance, with celebrations kicking off at around 10am local time.
During the parade, North Korea displayed what appears to be new long-range and submarine-based missiles.
Missiles seem to have been the main theme of the giant parade, with Kim Jong-un taking time to greet the commader of the Strategic Forces – the branch of North Korea's military that oversees the military arsenal.
North Korea has celebrated the 105th Day of the Sun with a spectacular military parade
Dressed in a dark suit, the North Korean leader looked relaxed as he oversaw the festivities in Pyongyang's main Kim Il Sung Sqaure.
Goose-stepping soldiers and marching bands filled the square, next to the Taedonggang River, followed by tanks, multiple-launch rocket systems and other weaponry.
The parade included a display of single-engine propeller-powered plans flying in a 105 formation.
Thousands of troops gathered in Pyongyang for the celebrations
Unlike previous parades, there did not appear to be a single senior Chinese official in attendance.
China is North Korea's sole major ally, but has spoken out against the country's missile and nuclear tests, and has supported sanctions by the United Nations.
Weapons analysts say some of the missiles on display were new types of intercontinental ballistic missiles (ICBM).
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Kim Jong-un attended the ceremony in Pyongyang
Melissa Hanham is a senior research associate at the U.S.-based Middlebury Institute of International Studies at Monterey, California.
According to her, North Korea's display of two new kinds of ICBM – which were enclosed in canister launchers and mounted on the back of trucks – suggests that Pyongyang may be working towards a "new concept" of ICBM.
She added: "However, North Korea has a habit of showing off new concepts in parades before they ever test or launch them.
"It is still early days for these missile designs."
North Korea May Be Preparing a Nuclear Test for Kim Il-Sung’s Birthday
Fri, April 14, 2017
North Korea has begun preparing festivities for the 'Day of the Sun,' a holiday celebrating communist leader Kim Il-Sung
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Military officers visit the birthplace of North Korean founder Kim Il Sung, a day before the 105th anniversary of his birth, in Mangyongdae, just outside Pyongyang
The celebrations are dedicated to Kim Il-sung, North Korea's first leader
The Pukkuksong submarine-launched ballistic missiles (SLBM) were also on parade.
It was the first time North Korea had shown the missiles, which have a range of more than 1,000 km (600 miles), at a military parade.
According to Joshua Pollock, editor of the Washington-based Nonproliferation Review, displaying more than one of these missiles indicates North Korea is progressing with its plan to base a missile on a submarine, which are hard to detect.
He said: "It suggests a commitment to this programme. Multiple SLBMs seems like a declaration of intent to advance the programme."
The celebrations also included displays of North Korea's military technology
North Korea is still technically at war with the South after their 1950-53 conflict ended in a truce but not a treaty.
The kingdom has on occasion conducted missile or nuclear tests to coincide with big political events and often threatens the United States, South Korea and Japan.
Choe Ryong Hae, a close aide to Kim Jong Un, addressed the packed square with a characteristically bellicose warning to the United States.
He said: "If the United States wages reckless provocation against us, our revolutionary power will instantly counter with annihilating strike, and we will respond to full-out war with full-out war and to nuclear war with our style of nuclear strike warfare."
The parade is a spectacular tribute to the founder of North Korea
State news agency KCNA said the Trump administration's "serious military hysteria" had reached a "dangerous phase which can no longer be overlooked".
The United States has warned that a policy of "strategic patience" with North Korea is over. U.S. Vice President Mike Pence travels to South Korea on Sunday on a long-planned 10-day trip to Asia.
China has also stepped up economic pressure on North Korea, banning all imports of North Korean coal on February 26 – thereby cutting off the North's most important export product.
North Korea, the US and China have all said they are 'ready for war', as tension between the three nations continue to escalate.