U.S. Secretary of State John Kerry and Palestinian President Mahmoud Abbas will meet in London on Thursday, the U.S. State Department said, less than a month after a U.S. effort to broker an Israeli-Palestinian peace deal collapsed. The focus of the talks is the U.S.-Palestinian relationship, the State Department said, a possible reference to whether Washington can keep funding the Palestinian Authority if it carries out a unity agreement with the Islamist Hamas faction. \"While the door remains open to a peace process, the purpose of the meeting is to discuss our ongoing relationship with the Palestinians,\" State Department spokeswoman Jen Psaki said in a brief statement on Monday. \"As he has throughout the process, Secretary Kerry will reiterate a call he has made to both sides to maintain restraint and refrain from steps that would be unhelpful,\" she added.