President Trump on Thursday promised to strip terror organizations of their territory and funding.

"America and Europe have suffered one terror attack after another," Trump said during remarks in Poland.

"We are going to get it to stop."

Trump during his remarks on Thursday pointed to a gathering earlier this year in Saudi Arabia, where he said he called "on the leaders of more than 50 Muslim nations to join together to drive out this menace, which threatens all of humanity."

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"We must stand united against these shared enemies to strip them of their territory and their funding," he said in Poland. "And their networks and any form of ideological support that they may have."

The U.S. will always welcome new citizens who "share our values and love our people," he said.

"Our borders will always be closed to terrorism and extremism of any kind," Trump added.

His comments come after the Supreme Court last month decided to allow a limited version of Trump's travel ban to take effect. Trump has said the order is necessary to keep the country safe.