Sens. Bernie Sanders and Elizabeth Warren and Reps. Barbara Lee and Ro Khanna are joining a projected 12,000 activists and members of progressive organizations from across the country for a strategy call in advance of Thursday’s planned actions against President Donald Trump’s push for war with Iran. 

The call, set for 8pm Wednesday, will address how to move forward with preventing the White House drive for war. Progressive advocacy group MoveOn is hosting the call. MoveOn, Win Without War, Indivisible, About Face: Veterans Against the War, and the National Iranian American Council organized Thursday’s mass action.

“On the call, attendees will discuss the upcoming #NoWarWithIran events, happening tomorrow (Thursday, January 9th), get updates on the latest developments on the crisis, and learn more about how they can engage their members of Congress to stop Trump’s push for war with Iran,” the groups said in a statement.

Though the immediate danger of a full-scale war appears to be over at the moment—Trump stood down this morning after Iran hit back against the U.S. assassination of Major General Qasem Soleimani—the possibility of the reignition of tensions remained high.