A firm implementing a competitive international strategy needs to balance global standardization and responsiveness to individual host country markets. In order to balance in an appropriate way, the firm needs to answer two central questions: (1) how can sharing of knowledge relevant to any market support a foreign subsidiary’s competitive strategy? and (2) how should local competition and other local matters be handled? However, despite the fact that the issue of balancing is largely relevant, in practice, strategy literature does not pay enough attention to the issue. Therefore, this chapter initially elucidates corporate support of a subsidiary’s competitive strategy and the strategy expresses the degree to which the firm implements global standardization and local responsiveness at the same time. After that, the chapter highlights implementation of a competitive international strategy in terms of upgrading a subsidiary’s scope of value adding. The upgrading is triggered by incoming knowledge stemming from the corporate strategy and by market experience accumulated by the subsidiary itself. An analysis of two subsidiaries shows how it may work in practice. Both belong to Swedish parent firms and operate in the United States.