President Trump’s summit with North Korean leader Kim Jong Un next month has experts hoping the president avoids Singapore redux and produces concrete steps to move closer to a denuclearized Korean Peninsula.

“It’s possible if the North Korean government abandons every demand that it’s made for the last 25 years and completely reverses its position on denuclearization and its ambitions for unconditional control of the Korean Peninsula,” Nicholas Eberstadt, a scholar with the American Enterprise Institute who focuses on international security in the Korean Peninsula and Asia, said of whether tangible steps can be agreed upon. “But otherwise, it’ll be a little tough.”