This article originally appeared in Forbes.

In her concession speech, failed 2016 Democrat presidential nominee Hillary Clinton reiterated that someday, a woman will break the “highest, hardest glass ceiling” and become President of the United States. While she didn’t succeed in her two runs, one day, some woman will.

But that is not the case in many other countries where women don’t enjoy the basic freedoms that we often take for granted–freedoms that we should celebrate and keep at the forefront when discussing the role of government.

Historically, governments have not always been protectors of freedom. The symbolism of the physical wall dividing East Berlin and West Berlin is a poignant reminder of this.

Today, November 9, marks the 27th Anniversary of the fall of the Berlin Wall in 1989.

In 2001, President George W. Bush designated November 9 as World Freedom Day for Americans to observe the fall of the Berlin Wall and recommit themselves to the cause freedom. In his Proclamation, he said that this anniversary marks “a significant landmark in freedom’s victory over tyranny” and discussed the threats to freedom at the time:

During the Cold War, freedom and authoritarianism clashed. Countries and entire regions suffered under repressive ideologies that sought to trample human dignity. Today, freedom is again threatened. Like the fascists and totalitarians before them, Al Qaida, the Taliban regime that supports them, and other terrorist groups across the world seek to impose their radical views through threats and violence.

The threats to freedom change over time. ISIS, for example, didn’t exist in 1989. Today, women and girls are captured and abused as sex slaves under ISIS rule.

President Barack Obama’s Presidential Proclamation for World Freedom Day this year calls on Americans to, “observe this day with appropriate ceremonies and activities, reaffirming our dedication to freedom and democracy.”

The acceptance of losing an election and peaceful transfer of power from one party to another as the result of an election are a testament to the freedom Americans have to choose our government leaders.

Many millennials were not even born yet when the Berlin Wall fell, which is why it is important to remember this day and the oppression people around the world have faced and continue to face under certain regimes.

Today, college chapters of the Network of enlightened Women, known as NeW, the organization I run, are promoting remembrance of this day by holding up and handing out posters with a powerful message: “Freedom Is Not Free.”

Rebecca Malone, a member of the NeW chapter at American University, summed up what freedom means to her as a young American woman:

“Freedom is knowing that if I put in the effort and work hard, I can pursue whatever path I choose.”

Vanessa Rivera, a Florida Gulf Coast University NeW chapter member, acknowledged that freedom must be vigilantly protected:

“Freedom belongs to those willing to fight for it, however they can. Whether it’s by voting, serving, or being involved in other ways, we need to preserve it.”