Why did Greece guarantee the Varyag when it passed the Bosphorus?

This is mainly because the relationship between the Greek government and China was very good at that time, so the Varyag was guaranteed in the name of the country. Therefore, when there was a serious Greek debt default, China also actively lent a helping hand, which was also caused by the profound friendship between the two countries. Moreover, NATO countries at that time didn't want China to own the Varyag, but because of the influence of international law, they couldn't take any unfavorable measures against China, so they actively made some small moves at some checkpoints.

So at that time, thanks to the guarantee of the Greek government, it brought a glimmer of life to the development of Chinese aircraft carriers. Because now everyone knows how much the carrier Varyag has influenced China. Without the carrier Varyag, the development of China's aircraft carrier may go backwards 10 years. So at that time, under the great pressure of NATO countries, the Greek government actively used the country name to ensure that there was no problem with the Varyag. So it also brings good relations between China and Greece.

A few years ago, because the Greek government defaulted on its debts, Greece was severely criticized, and there were also demonstrations in Greece. But at this time, China actively helped Greece to repay its debts and also actively helped Greece develop its economy. It can be said that the relationship between the two countries is very close. So now Greece's national economy is showing very good signs.

Of course, so many western countries interfered with China's Varyag, mainly because they were afraid that China would develop aircraft carrier forces against these countries that had bullied China, so it would actively hinder China's economic and military development. But China is a peaceful rising country and will not pose a threat to any country.