North Koreans lay flowers below portraits Kim Il Sung ahead of his birthday celebrations
The 105th birth anniversary of the founder is on Saturday, celebrated as the Day of the Sun in North Korea, its most important holiday.
The North Korean regime often uses such anniversaries for displays of military prowess.
A light rain fell in the capital, Pyongyang, as people wearing gumboots and holding umbrellas walked past portraits of the late leader and signs proclaiming "Sun Day is the most significant event in North Korea".
A military parade is likely to be held on Saturday to mark Kim Il Sung's anniversary but government minders have not confirmed any details with visiting foreign journalists.
It is likely the current leader, his grandson Kim Jong Un, will make an appearance.
Such pageantry reinforces the cult of personality around the Kim family, three of whom have ruled North Korea with a vice-like grip.
The visiting journalists saw nothing out of the ordinary in Pyongyang despite the talk of war.
However, when foreign journalists visit North Korea, their movements are closely managed and they are usually restricted to Pyongyang.
We don't want war but we are not afraid of war
Jon Myon Sop
Conversations with people are monitored by government "minders", who also provide translations into English.
Near the birthplace of Kim Il Sung, a pilgrimage spot for North Koreans, commuters moved briskly on and off the subway, young women holding umbrellas walked by, clasping arms, while two children in blue school uniforms shuffled down the street holding a flower basket almost their own size.
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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 birth anniversary of the founder is the country’s most important holiday
Jon Myon Sop, who works at a bus station, said: "If the enemies want to wage war with our leaders, we have nothing to fear because we will win."
"I know about how tensions are rising on the Korean Peninsula and how the U.S. and its puppet countries have brought their military assets to the region."
Cho Hyon Ran, a tour guide at the site, said: "We don't want war but we are not afraid of war because we have strong power, our country is the strongest one in the world now.
"You can see all people are laughing, all people are singing, all people are celebrating the Sun's day," she said in English. "We are not afraid of anything."
Pyongyang's leaders regularly threaten the United States and South Korea with destruction. Technically, North Korea is still at war with the South and its ally, the United States, because the 1950-53 Korean War ended in an armistice and not a peace treaty.
A US aircraft carrier group is headed to Korean waters this week amid concerns that Pyongyang may conduct a nuclear or long-range missile test and US President Donald Trump has threatened unilateral action "to solve the problem".
In South Korea, there is no sign of tension either but also very little talk of war.
The North Korean government often use the occasion as an opportunity to display their military power
Residents in the capital, Seoul, which is within range of the North's artillery, were observing "Black Day" on Friday, a day for singles marked by eating "jajangmyeon", a noodle dish topped with a thick sauce made of black beans.
It's celebrated as a response to "White Day", an Asian Valentine's Day which falls a month earlier, on March 14.
Choi Na-young, an office worker in central Seoul, said: "Outside South Korea, some people are worried, but we don't feel like that in our daily lives.
"All I can do is just try my best and work hard," said Choi, as she queued for noodles with colleagues.
"So no matter what the outside world thinks, I came here to enjoy Black Day."