The integrated national strength of Communist China has comprehensively enhanced in the past decades, described as the phenomenon of "rise of China". However, the decades of confrontation between the two sides of the Taiwan straits, results in playing a considerable price in mutual development. From the environmental and resource point of view, the Chinese communist party has played dominant role, and occupied a great resource, thus processed great influence and strong force to vocalize its interests. In contrast, those of Taiwan are relatively and gradurally decreased. After Kuomintang ( KMT) returned to power in 2008, based on the "1992 consensus", the two sides of the Taiwan straits resumed, interrupted nearly a decade, reconciliation and cooperation. It is our research question that whether the strait reconciliation can be extended to the field of foreign affairs and overseas Chinese affairs. The diplomatic policy of Taiwan does not need to be in opposition with the Chinese Communist in each field of the international society. The developed new thinking of "Viable diplomacy" of President Ma, from a pragmatic point of view, and in line with practical demand of the international issues, might strive for greater international space for Taiwan.
Cross-strait "diplomatic truce" is part of the concept of "Viable diplomacy". The basic idea is that both parties to cease fighting each other''s diplomatic allies with diplomatic efforts. At the same time, about the issues of the participation of international organizations and activities, both sides could assist each other, respect each other and jointly contribute to the international community, rather than vicious competition and wasting global resources.
This article reviewed the concept and application of "Viable diplomacy" policy since 2008 to the current status. In the context, each item related to Viable diplomacy was discussed, including the origin, meaning and practice, constraints faced, challenges and opportunities in the future. The international responses to the "Viable diplomacy" of Taiwan government were assessed for the effectiveness of this policy in increasing international space and improving international relationship.
With the deepening development of cross-strait relations, exchanges between the two sides of the Taiwan straits have entered the deep water zone, where the core issues of the nationality identification will be encountered. The two sides should try a novel path, looking for innovative strategies, to solve the political dilemma. Particularly, the two sides have different expectation about the issue of international space for Taiwan regarding national identity. This issue has hindered the peaceful development of cross-strait relationship forward. Joint efforts from the two sides to actively explore the innovative and practical strategies are essential to seek a mutually acceptable methods and models. This joint effort would be the key force in the development of cross-strait peace and regional stability.