Ukrainian President Volodymyr Zelenskyy said in his Friday evening address that he hopes the U.S. will maintain a strong position in its talks with Russia.

"Of course, I receive reports from our intelligence and diplomats about preparations for the meeting in Alaska and about what Putin is bringing with him. We are also receiving reports from regions of Ukraine following Russian strikes ... On the day of the negotiations, they are still killing people and that speaks volumes," Zelenskyy said.

"Ukraine is ready to work as productively as possible to end the war and we hope for a strong position from the U.S. Everything will depend on this -- the Russians respect American strength. Strength alone," Zelenskyy added.

"The time difference with Alaska is 11 hours, so tomorrow will start early for everyone in Europe. We are preparing for the relevant talks. Russia must end the war it started and has dragged on for years. The killings must stop. A meeting of leaders is needed. At the very least, Ukraine, the U.S. and Russia must meet in this format for effective decisions to be made. Security guarantees are needed. Lasting peace is urgently needed. Everyone knows the key objectives. I would like to thank everyone who is helping to achieve real results."

Two B-2 bombers were flown into Joint Base Elmendorf-Richardson in Alaska ahead of the meeting, according to two officials.

The stealth bombers are the same kind used by the U.S. to strike Iran's nuclear sites in June's Operation Midnight Hammer.

The B-2 is considered a symbol of U.S. power, as the bombers can fly around the world nonstop and can carry both conventional and nuclear munitions.

The Pentagon did not respond to a request for comment.

-ABC News' Cindy Smith, Katherine Faulders and Anne Flaherty

President Donald Trump told Fox News that if his meeting with Russian President Vladimir Putin doesn't go well, "I would walk."

"Heading in, what's your initial feeling? How are you feeling about what you're going to get out of this?" Fox News' Bret Baier asked Trump.

"I think we're going to do very well. Our country is doing very well. We're setting records economically like we never have before, including the stock markets are all at record high. We're taking in trillions and trillions of dollars with tariffs. We're going for a meeting with President Putin in Alaska, and I think it's going to work out very well. And if it doesn't, I'm gonna head back home real fast," Trump said.

"I mean, if it doesn't, you walk?" Baier asked.

"I would walk, yeah," Trump said.

-ABC News' Fritz Farrow

Asked what was different about a face-to-face meeting rather than phone calls during his gaggle with reporters aboard Air Force One, President Donald Trump said "no difference," then went on to say that there’s "good respect" between him and Putin.

"Look, he's a smart guy. Been doing it for a long time, but so have I," Trump said. "We get along. There's a good respect level on both sides."

Trump also said he liked that Putin was bringing businesspeople from Russia to the summit "because they want to do business, but they're not doing business until we get the war settled."

-ABC News' Fritz Farrow