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: When German Chancellor Angela Merkel sat beside Recep Tayyip Erdogan as their two countries played each other at football earlier in the month, nothing could have seemed friendlier.

Germany's charged immigration debate