The escalating conflict in Europe didn't stop Alice Paul and the NWP from protesting Wilson's hypocritical stance on the war.
Wilson promoted the idea of maintaining democracy abroad, even though the United States still denied half of its citizens the right to vote.
The NWP pickets were seen as controversial because they continued during war time and other suffrage groups like NAWSA chose to support the war effort.
Known as "Silent Sentinels", their action lasted from January 10, 1917 until June 1919.
The picketers were tolerated at first, but when they continued to picket after the United States declared war in 1917, they were arrested by police for obstructing traffic.
Regardless of the weather, the women stood outside of the White House holding banners, constantly reminding Wilson of his hypocrisy.
When they were first arrested, Lucy Burns claimed that they were political prisoners but were treated as regular prisoners.
 As a tribute to their commitment to suffrage, they refused to pay the fines  and accepted prison time.

The first night that the Silent Sentinels spent in jail was known as the Night of Terror: the prisoners were beaten until a few of them were unconscious, starved, and Burns had her hands chained above her head.
Due to this unlawful detention, many of the NWP's members went on hunger strikes; some, including Lucy Burns and Paul, were force-fed by jail personnel as a consequence.
Hunger strikes left the women weak and in terrible conditions, but they persisted.
After a while, the guards were told to force-feed the women.
They had long narrow tubes shoved down their throats, which caused many injuries that failed to heal.
The suffragists were also forced to provide labor in the workhouses and were often beaten and abused.
Taking advantage of the mistreatment and physical abuse, some of the suffragists shared their stories to the press and to The Suffragist, their suffrage newspaper.
Doris Stevens, a notable member of the NWP, wrote about their horrible experiences in the Occoquan Workhouse in her memoir Jailed for Freedom.
The resulting publicity was at a time when Wilson was trying to build a reputation for himself and the nation as an international leader in human rights.
Many of banners featured quotes from Wilson about preserving democracy abroad, which called attention to Wilson's hypocrisy and his lack of support for a national suffrage amendment.

There are many different theories about why Wilson changed his stance of suffrage.
Wilson favored  woman suffrage at the state level, but held off support for a nationwide constitutional amendment because his party was sharply divided, with the South opposing an amendment on the grounds of state's rights.
The only Southern state to grant women the vote was Arkansas.
The NWP in 1917–1919 repeatedly targeted Wilson and his party for not enacting an amendment.
Wilson, however, kept in close touch with more moderate suffragists of the NAWSA.
Wilson continued to hold off until he was sure the Democratic Party in the North was in support; the 1917 referendum in New York State in favor of suffrage proved decisive for him.
In January 1918, Wilson went in person to the House and made a strong and widely published appeal to the House to pass the bill.
The NWP had many innovative non-violent tactics including; staging sit-ins, organizing deputations of high class and working-class women, boycotting the Democrats in midterm elections, using the voting power of women in the west, appealing to Wilson everyday through picketing, and calling out Wilson for supporting world democracy but not supporting it at home, of the NWP were a contributing factor in getting Wilson to change his position on the suffrage bill.
It passed but the Senate stalled until 1919 then finally sent the amendment to the states for ratification.
Scholar Belinda A. Stillion Southard has written that "...the campaign of the NWP was crucial toward securing the passage of the Nineteenth Amendment."
The escalating conflict in Europe didn't stop Alice Paul and the NWP from protesting Wilson's hypocritical stance on the war. Wilson promoted the idea of maintaining democracy abroad, even though the United States still denied half of its citizens the right to vote. The NWP pickets were seen as controversial because they continued during war time and other suffrage groups like NAWSA chose to support the war effort. Known as "Silent Sentinels", their action lasted from January 10, 1917 until June 1919. The picketers were tolerated at first, but when they continued to picket after the United States declared war in 1917, they were arrested by police for obstructing traffic. Regardless of the weather, the women stood outside of the White House holding banners, constantly reminding Wilson of his hypocrisy. When they were first arrested, Lucy Burns claimed that they were political prisoners but were treated as regular prisoners.  As a tribute to their commitment to suffrage, they refused to pay the fines  and accepted prison time.
The first night that the Silent Sentinels spent in jail was known as the Night of Terror: the prisoners were beaten until a few of them were unconscious, starved, and Burns had her hands chained above her head. Due to this unlawful detention, many of the NWP's members went on hunger strikes; some, including Lucy Burns and Paul, were force-fed by jail personnel as a consequence. Hunger strikes left the women weak and in terrible conditions, but they persisted. After a while, the guards were told to force-feed the women. They had long narrow tubes shoved down their throats, which caused many injuries that failed to heal. The suffragists were also forced to provide labor in the workhouses and were often beaten and abused. Taking advantage of the mistreatment and physical abuse, some of the suffragists shared their stories to the press and to The Suffragist, their suffrage newspaper. Doris Stevens, a notable member of the NWP, wrote about their horrible experiences in the Occoquan Workhouse in her memoir Jailed for Freedom. The resulting publicity was at a time when Wilson was trying to build a reputation for himself and the nation as an international leader in human rights. Many of banners featured quotes from Wilson about preserving democracy abroad, which called attention to Wilson's hypocrisy and his lack of support for a national suffrage amendment.
There are many different theories about why Wilson changed his stance of suffrage. Wilson favored  woman suffrage at the state level, but held off support for a nationwide constitutional amendment because his party was sharply divided, with the South opposing an amendment on the grounds of state's rights. The only Southern state to grant women the vote was Arkansas. The NWP in 1917–1919 repeatedly targeted Wilson and his party for not enacting an amendment. Wilson, however, kept in close touch with more moderate suffragists of the NAWSA. Wilson continued to hold off until he was sure the Democratic Party in the North was in support; the 1917 referendum in New York State in favor of suffrage proved decisive for him. In January 1918, Wilson went in person to the House and made a strong and widely published appeal to the House to pass the bill. The NWP had many innovative non-violent tactics including; staging sit-ins, organizing deputations of high class and working-class women, boycotting the Democrats in midterm elections, using the voting power of women in the west, appealing to Wilson everyday through picketing, and calling out Wilson for supporting world democracy but not supporting it at home, of the NWP were a contributing factor in getting Wilson to change his position on the suffrage bill. It passed but the Senate stalled until 1919 then finally sent the amendment to the states for ratification. Scholar Belinda A. Stillion Southard has written that "...the campaign of the NWP was crucial toward securing the passage of the Nineteenth Amendment."
National Woman's Party