Republican candidate Donald Trump said Wednesday on Morning Joe that he would have a "deportation force" in his administration to handle illegal immigrants in the United States.

Trump, who has frequently promised a giant "wall" between the U.S. and Mexico that the latter would pay for, was explaining a sect of his immigration stance when MSNBC co-host Mika Brzezinski asked him how exactly he would deport the millions of illegal immigrants living in the country.

"Are you going to have a massive deportation force?" she asked.

"You're going to have a deportation force, and you're going to do it humanely and you're going to bring the country–and frankly, the people, because you have some excellent, wonderful people, some fantastic people that have been here for a long period of time," Trump said. "Don't forget, Mika, that you have millions of people that are waiting [in] line to come into this country, and they're waiting to come in legally."

Trump went on to describe the wall he would build that would be the "real deal" and would "stop people" while still allowing for immigrants to enter the U.S. through legal channels.

"There's going to be a big, beautiful, nice door," he said. "People are going to come in, and they're going to come in legally … Otherwise, we don't have a country."

"So people will face ramifications if they don't leave, if they harbor them?" Brzezinski asked.

"People will leave," Trump said.

"How are you going to pay for this? Are they going to be ripped out of their homes? How?" Brzezinski asked.

Trump said such an operation would be inexpensive.

"They're going back where they came," Trump said. "If they came from a certain country, they're going to be brought back to that country … They can come back, but they have to come back legally."