US President Donald Trump arrived in Scotland on Friday evening for a five-day visit combining official meetings, business, and personal travel.Speaking to reporters after stepping off Air Force One, Trump made strong remarks on immigration in Europe."On immigration, you better get your act together. You're not going to have Europe anymore," he said.He called immigration an "invasion" that was "killing Europe."“You’ve got to stop this horrible invasion that is happening to Europe, many countries in Europe.""Some leaders have not let it happen, and they’re not getting the proper credit... I could name them to you right now, but I’m not going to embarrass the other ones. But stop, this immigration is killing Europe," Trump added.Trump also criticised the use of wind energy across Europe."Stop the windmills. You're ruining your countries," he said. "It's so sad. You fly over and you see these windmills all over the place, ruining your beautiful fields and valleys and killing your birds."He praised his administration’s handling of immigration in the United States."Last month, we (the United States) had nobody entering our country. Nobody. Shut it down. And we took out a lot of bad people that got there with (former US president Joe) Biden," Trump said."Biden was a total stiff, and what he allowed to happen.... but you're allowing it to happen to your countries, and you've got to stop this horrible invasion that's happening to Europe; many countries in Europe," he added.During his time in Scotland, Trump will visit two golf courses that carry his name, Trump Turnberry on the southwest coast and Trump International Golf Links near Aberdeen in the northeast. He is also scheduled to meet UK Prime Minister Keir Starmer.Trump has family ties to Scotland. His mother, Mary Anne MacLeod, was born in 1912 on the island of Lewis in the Outer Hebrides. She later moved to New York during the Great Depression, where she married Fred Trump.This visit comes ahead of an official state visit from 17 to 19 September, during which Trump and US First Lady Melania Trump will be hosted by King Charles at Windsor Castle.