President Donald Trump returned to Washington, D.C., early Tuesday morning, cutting his stay in Canada for the G7 summit short.

After President Putin called President Trump and offered his mediation services in the Iran-Israel conflict, Chinese President Xi Jinping called for de-escalation in tensions, stating that Beijing is

China will continue to support political and diplomatic efforts to resolve the Iran nuclear issue, firmly safeguard the international nuclear nonproliferation mechanism, and uphold peace and stability in the Middle East.

Despite evidence that the conflict between Israel and Iran is escalating, U.S. President Donald Trump expressed optimism on Sunday that peace would come soon and cited the possibility that Russia's Vladimir Putin could help.

Speaking to pilgrims at the end of a special Jubilee audience June 14, the pope expressed deep concern over the “seriously deteriorating” situation in the Middle East, warning of the consequences of further escalation. “I want to strongly renew an appeal to responsibility and reason,” he said.

The president didn’t reach new trade deals but signed onto a joint statement calling for “peace and stability.”

The Russian leader briefed Trump on his recent talks with officials in Iran and Israel, and reiterated Moscow's proposal to seek mutual solutions on the Iranian nuclear issue.

China warned the Iran-Israel conflict may spread wider instability in the Middle East, with Foreign Minister Wang Yi reaching out to both countries as their days-old conflict shows no end in sight.