As a measure of showing solidarity across an international boarder (without any wall), Canadian air traffic controllers have been sending pizzas to their American counterparts during the partial government shutdown. In the United States, air traffic controllers are being forced to work without pay until Congress consents to President Trump's demand for a boarder wall with Mexico.
An air traffic controller center in Edmonton, Alberta, was the first to order pizzas for American workers in Anchorage, Alaska. As news of their good deed spread on social media, more Canadian air traffic controllers joined the movement. They have ordered 350 pizzas for American workers, so far.