As early as October 26, 2006, former U.S. President George W. Bush signed a bill authorizing the establishment of a wall along the U.S.-Mexico border, aiming to prevent a large number of illegal immigrants from entering the United States from the Mexico-U.S. border by building a wall that stretches for thousands of miles.

The U.S.-Mexico border is strong
The new bill not only approves the construction of a new 1,126-kilometer wall along the U.S.-Mexico border, but also authorizes border enforcement officers to deploy more mobile fences, open more checkpoints, and erect more lighting to prevent illegal entry into the United States. In addition, the bill approves the Department of Homeland Security to use more advanced means such as cameras, satellites, and unmanned aerial vehicles to enhance security in border areas.
But this living among American politicians has always been a pawn in the game, and the current US President Trump is undoubtedly a staunch advocate, promoter and executor of the bill. In order to build this wall, he even used his greatest power as president, and tried to bypass Congress and directly perfect and build this "thousand-mile wall".
The U.S. military is under construction on a section of the U.S.-Mexico border wall
Such a wall reminds us of the most famous wall in the Cold War of yesteryear. "The Berlin Wall".
In order to commemorate the fall of the "Berlin Wall", the city of Berlin has organized many commemorative activities, and the most impressive thing is an idea called "Light Boundary". The organizers used glowing balloon lights to form a 15-kilometer-long wall, which restored the shocking historical scars of the original. On the night of the anniversary, these balloon lights were released and Berlin was restored to a complete city without walls.
After the trauma of World War II and the Cold War, Berliners have a new saying: May you never get used to the existence of walls, never forget the existence of walls, and never accept walls as a norm. May you always have a love of freedom and always proudly declare: Ich bin ein Berliner, I am a Berliner.
The Berlin Wall was built on August 13, 1961, and is 155 km long. Initially a border fence made of barbed wire and masonry, it was later reinforced as a border defense facility consisting of watchtowers, concrete walls, open strips and anti-vehicle trenches. The Berlin Wall is a symbol of German division and an important landmark of the Cold War.
On November 9, 1989, the government of the GDR announced that citizens were allowed to apply for visits to the Federal Republic of Germany and West Berlin, and the Berlin Wall was forced to open. In June 1990, the government of the GDR formally decided to dismantle the Berlin Wall.
World War II and the Cold War created two Germanys, East Germany and West Germany; and because of ideological disputes, there was the "Berlin Wall". The people of a country are not allowed to move freely. But that didn't stop the Germans, who between 1961 and 1989 about 5,000 people tried to climb over the Berlin Wall, fleeing by splashing water, making homemade hot air balloons, jumping off buildings, hiding in cars or metal barrels, digging tunnels, and hitting the Wall with heavy locomotives. According to statistics as of 2009, the number of deaths is between about 136 and 245, and the exact number is unknown.
On August 15, 1961, a 19-year-old East German soldier Hans Konrad Schumann, who had mutinied, crossed the barbed wire barricade in front of BernauerStraße with a rifle into West Berlin. His famous leap towards West Berlin has spread around the world.
On August 17, 1962, 18-year-old Peter Fechter was shot down by East German border guards as he and his friends climbed over the Berlin Wall, lying on the ground for nearly an hour without assistance, and eventually died of excessive bleeding. He was the first fugitive to die trying to climb over the Berlin Wall.
A man who climbed over the wall was running wildly.
In 1961, a 17-year-old East German boy climbed over the Berlin Wall, and two West German police officers were helping him get down safely.
On October 4, 1961, a vigil was held for Bernd Luenser, who tried to jump from the roof of Room 44 BernauerStraße in East Berlin to the street on the West Berlin side.
In October 1964, East Berliners dug a tunnel from East Berlin to the cellar of a bakery on Bernauerstraße in West Berlin. In this large-scale escape, a total of 57 people successfully fled to West Berlin.
When U.S. President John F. Kennedy visited Berlin in 1963, at the checkpoint of the Brandenburg Gate, he said in German: I am a Berliner (ICH BIN EIN BERLINER). Thousands of Germans followed in chanting, "I am a Berliner."
In 1965, two men were opening a hollow metal bucket brought by three West Germans across the border from East Berlin, and the metal bucket contained their girlfriend.
In 1971, East German border guards took away a gun-wounded escapee. The escapee, though dashing across the East German border facility, had not yet reached the Berlin Wall.
In April 1989, two East Berliners jumped over a border barrier at a border checkpoint and tried to flee to West Berlin. But they were stopped and arrested by gun-wielding East German border guards.
On November 4, 1989, East Berliners staged their largest demonstration, just days before the city, which had been forcibly separated for 28 years, was finally lifted.
In the early morning of November 10, 1989, on Friday, there was a massive reading of the Berlin Wall
On November 10, 1989, the East German government announced that the border was open to the west, and East and West Berliners gathered at a control station in East Berlin to celebrate.
On November 11, 1989, a section of the Berlin Wall was torn down in front of the Brandenburg Gate, and the East Berlin Border Guard was looking out through a small hole in the wall.
On November 11, 1989, people stood on a section of the Berlin Wall in front of Potsdamer Platz to celebrate the fall of the Berlin Wall.
On November 12, 1989, thousands of people passed through checkpoints on Berlin's Bernauerstraße. After the berlin wall was lifted, millions of East German citizens flocked to West Germany for a brief visit.
An East German border police officer handed the flowers in his hand to a West German woman sitting on the Berlin Wall, under which the two Germans began to merge again
People greeted the 1990 New Year in front of Brandenburg's gates to celebrate the rebirth of their country.
This is today Berlin Maria. Elizabeth. The memorial wall in the Luders Auditorium, on which the figures are the number of people killed each year for trying to climb over the Berlin Wall and flee from East Berlin to West Berlin.