U.S. President Donald Trump signed the National Defense Authorization Act, which established the Space Force, a new branch of the U.S. military. Its motto is Semper Supra (“Always Above”).2019 

Centuries of Portuguese rule ended in Macau when it became a special administrative region under Chinese sovereignty, 12 years after China and Portugal reached an agreement on its status. 1999. 

The initial attack in Operation Just Cause, a U.S. military invasion of Panama, was launched. Its goal was to remove General Manuel Noriega as the country’s de facto leader and extradite him to face U.S. drug trafficking charges. 1989. 

Following the end of the Bangladesh Liberation War and 1971 India-Pakistan War, President Agha Mohammad Yahya Khan of Pakistan transferred power to Zulfikar Ali Bhutto, who put him under house arrest. 1971.

Following Abraham Lincoln‘s election as U.S. president, South Carolina became the first U.S. state to secede from the Union. 1860.

The National Liberation Front was formed with the purpose of overthrowing the U.S.-backed government of South Vietnam and reunifying North and South Vietnam. Chaired by Nguyen Huu Tho, it was the political arm of the Viet Cong. 1960.