Byline: Fazal-ur-Rahman As we celebrate 2011 as the year of Pakistan-China friendship, it gives us an important occasion to look back and cherish the evolution of Pak-China relations, which have stood the test of time in the real sense of the word. The world has been continuously transforming in many ways since we established our diplomatic relationship 60 years ago. However, in our relations, nothing has changed in terms of mutual understanding, cordiality and friendship. The only change this special relationship has experienced is that it has moved from strength to strength over all these years. And today, especially after the recent visit of Chinese Prime Minister Wen Jiabao, we can proudly claim that Pakistan-China relations are at their highest level yet.