Danze is located in the north of Poland, close to Gdansk Bay of the Baltic Sea.

It is a slightly semicircular Bay, located in the southeast of the Baltic Sea, partially separated by Haier Peninsula and the main body of the Baltic Sea, and injected by visva River, the largest river in Poland.

But the most striking thing in history is that for more than 600 years since the Teutonic Knights conquered the city in 1308, it has been the main focus of repeated competition between the two major nationalities of Germany and Poland.

Because it controls the estuary of the visva River, it is the most ideal estuary for Poland.

At the same time, it is also the throat connecting East Prussia and most of the territory of Germany.

Therefore, both Poland and Germany regard the city as their lifeline.

After each war, the party who loses the city will be humiliated and actively prepare for the war, which will lead to the next war.

Germany was defeated in World War I.

After the war, according to the “14 point” principle put forward by US President Woodrow Wilson, the Allies agreed to re-establish Poland as an independent nation-state.

However, if the national boundaries are divided completely according to the ethnic distribution, the newly established Poland can only be a landlocked country surrounded by powerful enemy countries, which will be very detrimental to its survival.

According to the geographical situation and historical ownership of danze, poles hope to regain the city as Poland’s natural sea port.

Poland’s wish was supported by the allies.

The final result of the compromise between the parties was that the peace treaty of Versailles in 1919 stipulated that Poland obtained a narrow Polish corridor leading to the Baltic Sea, and danze established a free city, a semi independent quasi state under the protection of the League of nations.

Danzig free city was officially established on November 15, 1920.

The power to manage internal affairs naturally fell to the absolute majority of German residents, but the external affairs of the free city were controlled by Poland to a great extent.

The free city issues its own stamps and coins with the inscription “danze free city”, as well as the city’s Oriental shipping and historical symbols.

However, both Poland and Germany are not satisfied with such an arrangement.

For poles, the existence of Danzig free city in fact hindered Polish trade, coupled with restrictions on poles who settled in the city, so the Polish government decided to build a new Gdynia port in the Polish Corridor West of the city, which soon accounted for most of Poland’s total maritime exports.

For the Germans, the loss of Danzig and the “Polish corridor” area has divided the German territory into two parts that are not connected.

The throat connecting most of the German territory and East Prussia has been “cut off”, and East Prussia, which is located in the “Polish corridor” and the east of Danzig free city, has become an isolated island.

The local majority of Germans even have no right to hold a referendum to determine their ownership like other disputed regions.

Therefore, many Germans have been bitter about this, which caused a lot of controversy and revenge in post-war Germany.

Shortly after the Munich conference, Germany believed that the time had come for a comprehensive settlement of the grievances between Poland and Germany.

On October 24, 1938, Ribbentrop put forward three demands to Lipsky, Polish ambassador to Germany: first, return the free city of danze to Germany. 2. Germany will build a super highway and a double track railway in the Polish corridor, both of which should enjoy extraterritorial jurisdiction. III. Poland joined the International Convention against communism and jointly opposed the Soviet Union.

In return, Germany is willing to extend the German Polish treaty from 10 to 20 years and guarantee the Polish border.

On November 19, Lipsky informed Ribbentrop according to the instructions of Foreign Minister baker: “any trend to integrate the free city into Germany will inevitably lead to a conflict, which is not only local, but also endangering the whole Polish German relations.

” There was a fierce response.

On November 24, he issued an order to the commander of the three armed forces, asking the German army to prepare for the occupation of Danzig free city.

On January 5, 1939, Hitler met with Polish Foreign Minister Beck in bochtesgaden.

They talked about the Danzig issue again.

Hitler said: “Danzig is German, it always belongs to Germany, and it will become a part of Germany sooner or later.

However, we can guarantee that there will be no fait accompli in Danzig.

” Hitler tried to persuade Baker to agree to their request, but to no avail.

The next day, in a conversation with Ribbentrop, Baker said that on the Danzig issue, he “did not see any possibility of reaching an agreement”.

On March 21, ribentropyolipsky once again made territorial claims to Poland, but he was still arrogant and imposing.

Ribbentrop warned that the head of state was “increasingly surprised by Poland’s attitude”.

He hoped that Poland would respond satisfactorily to Germany’s request.

On March 26, Lipsky transmitted the memorandum of the Polish government rejecting the German proposal to Ribbentrop.

Poland does not allow Germany to occupy Danzig.

Faced with the threat, Poland recruited reserve soldiers and announced local mobilization.

Ribbentrop rejected the Polish memorandum, was furious at Poland’s mobilization measures, and announced that any violation of Danzig territory by the Polish army was considered an aggression against Germany.

The next day, Ribbentrop summoned the Polish ambassador to Germany again and accused the persecution of the Germanic minorities in Poland out of nothing, saying that it had had a “serious impact” in Germany.

He claimed that the relationship between the two countries had deteriorated rapidly due to the attitude of the Polish government.

On March 28, Beck summoned the German ambassador to Poland and stated that any attempt by Germany or the Nazi Danzig Senate to change the status quo of this free city will be regarded by Poland as a reason for war.

While taking the offensive in diplomacy, Germany is also making military preparations for the free city of Danzig.

Since the end of February, German arms have been transported from erpin to the police barracks in danze every day.

On March 13 and 14, German officers in East Prussia conducted reconnaissance along the elping danze highway and the “possible battlefield”.

After the occupation of Slovakia, Germany immediately began to build fortifications in the protectorate.

In the days from the 27th to the 31st, there were constant reports of frequent movements of German troops in Slovakia towards the Polish border.

In order to prevent accidents, Poland also transported troops and war materials to the German Polish border area from March 17 to 25.

In addition, the democratic social party followers in danze also carried out rampant activities.

They were ready to start work on March 29, but they did not intervene because the German authorities believed that “it is inappropriate to go to Poland through danze”.

In the last few days of March, in Poland, it is expected that the German Polish war may break out at any time.

By the 30th, most officials of the Polish embassy in Berlin and polish nationals had repatriated their families, and consuls had received orders to destroy confidential documents.

At this time, Poland was also making intense preparations to resist German aggression.

On May 25, 1939, Hitler had decided to invade Poland.

Since then, Germany has accelerated the process of militarization of Danzig.

It uses various excuses to send personnel and weapons to Danzig.

However, the Azerbaijani authorities have greatly increased the number of police and organized volunteers.

At the end of June and the beginning of July, fortifications were built around the urban area of danze, a floating bridge was built on the Vistula River, houses were requisitioned to store arms, all motorcycles were inspected and horses were mobilized.

On July 3, the Senate of danze issued a decree on labor mobilization.

On July 4, the island of hall was closed for the storage of weapons and the stationing of volunteers.

For Germany to smuggle weapons into Danzig, Poland and the Danzig authorities also had a customs dispute that lasted for several months.

Throughout June and July, people have been worried, but Ze will be attacked by Germany at any time.

In early August, Nazi German leaders began to directly intervene in the dispute between the Polish representative in free city and the Senate of Danzig, exerting greater pressure on Poland until the war broke out on September 1.