Iran kept up its at­tacks on Is­rael and Per­sian Gulf neigh­bors on Wednes­day as airstrikes pound­ed Tehran and U.S. Pres­i­dent Don­ald Trump again made con­tra­dic­to­ry state­ments about whether he was ready to wind down the war or es­ca­late it.

Trump struck a bel­liger­ent tone Wednes­day in a Truth So­cial post, de­mand­ing that Iran stop block­ing the Strait of Hor­muz — the wa­ter­way vi­tal to glob­al oil sup­plies — or the U.S. would bomb the Is­lam­ic Re­pub­lic “back to the Stone Ages.” A day ear­li­er, Trump said the U.S. “will not have any­thing to do with” en­sur­ing the se­cu­ri­ty of ships pass­ing through Hor­muz; that was an ap­par­ent back­track from a pre­vi­ous threat to at­tack Iran’s pow­er grid if it didn’t open the strait by April 6.

Trump, who is sched­uled to give a tele­vised ad­dress Wednes­day evening, said Tues­day he could walk away from the war in two to three weeks once he felt con­fi­dent Iran would not be able to build a nu­clear weapon — even if Tehran does not agree to a cease­fire.