Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: Russia's decision to significantly reduce the number of US diplomatic staff marks the end of any immediate hope for a fresh start between Moscow and Washington. Indeed, it could usher in a new and uncertain period of competition between the two capitals.

US and Russia's diplomatic spat: Carving out an uncertain path