What is China's open door policy in the 'Chinese open door policy cartoon? Explain in one sentence

The Chinese open door policy in the cartoon refers to China welcoming foreign investment and trade by opening its doors to international companies and economic cooperation.

I thought the word EXIT was written

Apologies for the confusion. If the word "EXIT" is written in the cartoon, then the interpretation would be that China's open door policy allows international companies to exit their home markets and enter China's market for investment and trade.

What is its significance? Explain in one sentence

The significance of China's open door policy, as indicated by the word "EXIT" in the cartoon, is that it symbolizes China's willingness to attract foreign investment and promote economic development by allowing international companies to enter and exit its market freely.

But in the Cartoon why was a jap in uniform holding a gun and pointing at the men leaving through the door labeled EXIT? EXPLAIN IN ONE SENTENCE

The presence of a Japanese soldier holding a gun and pointing at the men leaving through the door labeled "EXIT" in the cartoon suggests a possible historical context, symbolizing Japan's military aggression and control during a period marked by imperialism and tensions between Japan and China.

Yes explain the significance of it? In one sentence

The significance of the Japanese soldier pointing a gun at the men leaving through the "EXIT" door in the cartoon is to depict the threat of Japanese imperialism and aggression, highlighting the vulnerability of China's open door policy and potential exploitation by foreign powers.