There have been many reasons for strained diplomatic relations between South Korea and China in the past few decades.
But many will be surprised to hear that the latest charka was created because of - sauerkraut.
Yes, you read that right.
The dispute between Seoul and Beijing erupted at the beginning of December last year after China awarded an international certificate for pao chai, a dish from Sichuan province very similar to South Korean kimchi - one of the country's most famous products.
China's state-run International Times reported that the International Organization for Standardization (ISO), a multinational agency, has recognized pao chai as "the international standard for the kimchi industry, led by China."
Although the ISO denied this claim, clarifying that the certificate only applies to pao chai and not to kimchi, an official protest from the South Korean Ministry of Agriculture followed.
And so a war of words broke out on social media between fanatical patriotic cabbage lovers on both sides.
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But this is not the first time that countries around the world have developed an appetite for "war over food".
Here are five other heated debates over the origins of famous dishes or products.
A "hot potato" in South America
Potatoes, one of the most famous staple foods in the world, originated in South America, from where they were brought to Europe after the Spanish invasion of this area in the 1530s.
But when Europeans first became aware of the existence of the potato, for them there were no longer national borders in South America, of course.
Which led both Peru and Chile, two neighboring countries with a long history of strained relations (and even a war in the 19th century), to declare themselves "the birthplace of the potato".
Chileans enthusiastically used both art and science to make their case: just like Nobel laureate Pablo Neruda's poem ("Ode to the Potato"), the country's Ministry of Agriculture announced in 2008 that "99 percent of the world's potatoes share some kind of genetic link." with potatoes from Chile".
Furious Peruvian authorities, who often boast that their country's crops "saved Europe from starvation", attached reports from their own experts stating that the ancestor of all potatoes, a species known as Solanum brevicuale, originated on the northern shores of Lake Titicaca, on Peruvian territory.
Santiago and Lima also quarreled over the use of the name "pisco" for the famous drink produced by both countries.
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Humus - another flashpoint in the Middle East
Many countries from the Middle East claim that they invented hummus - the famous chickpea spread.
But Israel and Lebanon have taken the dispute to a whole new level.
Both countries claim that hummus is an integral part of their heritage - Israeli experts, for example, claim that it is mentioned in religious Jewish writings dating back more than 2.000 years.
Producers in Lebanon sued Israel in 2008, claiming that the country was illegally marketing hummus as its own.
The Lebanese government also sent a petition to the European Union with a request to recognize hummus as Lebanese.
Both initiatives failed - the EU authorities announced that hummus is a food that belongs to the entire Middle East, including Israel.
And so the new front in the "wars for hummus" became the Guinness Book of World Records: Israel and Lebanon alternated as holders of the title of creator of the largest portion of hummus - the current record is 10.450 kilograms, set in Lebanon in May 2010.
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Tarapana around jollof rice in Africa
Jollof rice is extremely popular in West African countries such as Senegal, Ghana, Nigeria, Gambia, Sierra Leone, Liberia and Cameroon.
Recipes for this dish vary from country to country - all of which consider their version to be the best.
It's a very sensitive subject, and Nigeria's Minister of Information and Culture, Lai Muhammed, found himself in a bind in 2017 when he was mistakenly understood to be praising Senegalese jollof.
In an interview with CNN, Muhammad misheard the question of which country makes the best dish and sparked a dispute over rice that threatened to spill over into other spheres.
Thinking he was being asked about the original origin of the dish, the minister replied "Senegal" - referring to the fact that jollof rice is believed to be an invention of the Wolof people - the most numerous ethnic group in Senegal's population.
Outpourings of massive displeasure from Nigerians on social media followed, prompting Vice President Yemi Osinbajo to come to the minister's defense - but Osinbajo did not miss the opportunity to publicly declare that Nigeria's jollof is the best.
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When Obama caused a conflict between Turkey and Greece over dessert
Nobel Peace Prize winner former US President Barack Obama once unwittingly caused a culinary crisis between Turkey and Greece.
In addition to a large number of serious political disagreements, these two countries also clashed over the origin of dishes common in both national cuisines.
This includes baklava, a dessert made from pie crust, walnuts and honey.
In 2012, Obama hosted a dinner at the White House in honor of Greek Independence Day.
The dinner was prepared by the Greek cook Marija Loi.
Loi later stated that Obama "really liked the baklava", which some Turkish media saw as an acknowledgment of her Greek origin and thus got the president into a diplomatic mess.
A few years later, producers of Turkish baklava reacted bitterly to a European Union campaign that presented this delicacy as the national dish of Cyprus.
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The heated dispute between India and Pakistan
There is no shortage of disputes between India and Pakistan, but the most recent one concerned - rice.
Specifically, basmati rice, the aromatic long-grain version of this food.
In October last year, India, responsible for two-thirds of basmati rice imports in the European Union, submitted a request for this block to be granted exclusive geographical location status.
This would mean that only rice from India could be called basmati within the EU - which we have seen happen with products such as Champagne and Parma ham.
The problem is that Pakistan provides the remaining third of basmati imports to the EU, according to data from the European Commission, and the country's authorities were not overly impressed by the initiative from Delhi.
The European Commission has yet to make a decision on this matter.
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