It doesn’t take an expert to know that the cancellation of the US-ROK military exercise will not motivate North Korea to want to discuss denuclearization when they have no intention to denuclearize:
Amid growing speculation that joint military exercises between South Korea and the United States are likely to be called off in a bid to prevent the spread of COVID-19, and appease North Korea, diplomatic experts believe a cancellation as an olive branch to Pyongyang is not a good idea, saying there will be no “reciprocity” from the isolated country.
Korea Times
Currently, the government is in a quandary over whether to cancel the annual drills as the COVID-19 pandemic shows no sign of abating. The exercises will bring hundreds of American troops here, raising concerns over possible new infections.
In addition, further deepening Seoul’s calculations is the possibility of military retaliation from the Kim Jong-un regime, as the totalitarian state describes the exercises as hostile action by the U.S. against the North.
The government also wants the exercises to be focused on assessing the Korean military’s relevant capabilities on its way to regaining wartime operational control (OPCON) from the U.S. by 2022. Either a delay or a cancellation of the drills could disrupt the timetable for that.
“If the military exercises are canceled or postponed, it is possible North Korea will relent and agree to an eventual working level meeting, in response to recent U.S.-South Korea requests to resume negotiations. I doubt, however, that the cancellation or postponement of the exercises will motivate the North to resume working-level negotiations, given that it has refused to meet with the U.S. or ROK since late 2019,” Joseph DeTrani, a former U.S. special envoy to the six-party talks, told The Korea Times, referring to South Korea by its formal name, the Republic of Korea.
You can read more expert opinions at the link.