Richard Lawrence, an Army Aviator, introduces his friend, Count Zurich, to Zenia, his father's beautiful ward. The Count becomes infatuated with the girl and determines to win her. General Lawrence, Richard's father, is ordered to prepare for war. as Prince Dureseign is gathering an army to overthrow the government. In a terrific battle, the forces of Dureseign are driven back. Zenia and Richard fall in love, he proposes and she accepts him. Dureseign's forces are greatly augmented in numbers, surround General Lawrence's army and the General sends his son in a fast aeroplane for reinforcements.
Even though his widowed mother and sweetheart, Mary Putnam, disapprove, Worth Stuyvesant insists on going to West Point and becoming a soldier. Ultimately, Mary breaks off their engagement and Stuyvesant goes on a bender. His conduct is reported to the commander, who sends him to the sub post of Del Rio for 60 days of tour duty. There, Stuyvesant meets Lola Montez, an adventuress. With the help of a couple of her pals, Lola gets him drunk and marries him. But Stuyvesant lives up to his duties as a husband and surprisingly, Lola renounces her old ways and becomes a model wife.
The film depicts the failed 1809 uprising of Prussian soldiers led by Ferdinand von Schill against the occupying French during the Napoleonic War.
Tom Whitney, well connected but a social derelict because of his weakness for drink, is released from the draft because of an old football Injury, but a policeman persuades him that he can still do his bit in the shipyards. He takes a job in the yard owned by the man to whose daughter he was engaged in happier times. Three German propagandists seek to foment a strike to delay the work, and largely through Tom's efforts the plan goes amiss and the strike is called off. Rehabilitated by work, the launching of The Liberty is a forecast of his own rebirth.
Considered as the one of the first feature-length Turkish movies produced during the reign of the Ottoman Empire, Casus is about a spying adventure which took place in the First World War. The copy of the movie did not survive to the present day.
Young Virgie's father, Captain Herbert Cary, is a Confederate soldier. During the Civil War, Virgie, along with her slave Uncle Billy and her mother, are caught between the lines. While Virgie's father is fighting, her family is visited by Union soldiers, including Colonel Morrison, who is assigned to capture her father. Virgie inadvertently helps Morrison, by singing "Dixie" to him and then hiding her father. In the end, Virgie and her father are able to escape, and Virgie even sings "Polly Wolly Doodle" with the Union soldiers and hugs her father, now a Union officer,
An American munitions manufacturer and his son become ensnarled with enemy agents from Germany during the First World War.
The hero is a young soldier who is in love with two girls simultaneously. While on the battlefield, the soldier learns that one of his sweethearts has committed suicide. Only temporarily taken aback, he begins to dream of the blissful domesticity which he will enjoy with the other girl upon his return.
During World War I, the beautiful and patriotic Leslie Selden is courted by two ardent admirers: Jack Wynn, a young man not yet taken by the draft, and Dr. Wolff, a Danish scientist who, in reality, is a German agent. When Jack learns that Wolff is masterminding a plot to bomb several munitions factories and destroy the water system in New York City, he goes to the spy's home and confronts him.
Young Jackie Kernwood, the daughter of the colonel commanding an army post, is bored with the routines of post life, and to break the monotony she organizes a girls' brigade, of which her father disapproves. When the colonel forces her to disband the group, she makes up her mind to run away and become a nurse in the Red Cross. Before she can do that, however, she stumbles across evidence of a spy ring headed by an officer on the post that is plotting to blow up a troop train--and it looks like the chief spy is her boyfriend, Lt. Adair.
At a military hall in a Southern mansion the Confederate officers are amusing themselves. Captain Ford is the officer in charge and Virginia, the young hostess, is his sweetheart. At the height of their fun the sentries outside report the approach of Union soldiers. All officers hurry to their commands. At first the Confederates, having less men, attempt to outmarch the Federals. However, after a short time, they change plans and entrench themselves on the surrounding hills.
In Belgium, at the outbreak of the war, Russian agent Olga Raminoff shoots at a German general when the enemy enters town. Ray Bourke, an American traveler, gives her the protection of his name, but nevertheless both are sentenced to death. They are rescued by an allied rescue plane and later, bound for home, Ray meets an old college friend, Curt Schreiber, who is in the service of the German government. Schreiber has important papers to be delivered to Washington and, knowing that he will be searched on board ship, gives them to Ray. Olga beseeches Ray to give the papers up for her sake, but his word to Schreiber is sacred. Nearing America, Ray tells her that he will make an effort to return the papers if she will marry him.
In New York's Washington Square, a poet named Karl (Jack Livingston) is the king of art and artifice. But World War I breaks out and the spotlight on him begins to fade, so he dramatically declares his intention to enlist in the British Army. His friend Marcarson announces that he will go with him, keeping Karl to a promise which he hadn't planned to see through.
Richard Randall, a patriotic young lawyer speaks out against food profiteers. When ruthless food combine head, Everett Dearing, blackmails society idler Tony Terle into compromising Randall's wife, Beverly in an attempt to stop Randall's anti-war crusades. Ultimately, Terle is caught and confesses to killing Dearing, leading to Randall and Beverly's reunion.
Returning from France after the war, John Tabor informs Palma May of her brother's death and offers the penniless girl his help, but she refuses it, preferring to work as a cabaret dancer. Later, John and Palma meet again, marry, and go west to manage a lumber camp, as instructed by John's wealthy father, Jarvis Tabor. Displeased by John's choice of wife, the elder Tabor tests the couple with difficult living conditions, which eventually discourage Palma, and she accepts the party invitation of Keith Merwyn, manager of the cabaret where she starred. Meanwhile, Merwyn effects a disturbance among the lumbermen, endangering John.
Melia Nobbs, a young Canadian woman, supports both her invalid father Ambrose and brother Henry. When Henry faces arrest for helping himself to his employer's cash, Melia steals the amount from the star of the theater where she has been dancing and offers it to her brother if he will enlist in the army. Henry agrees and goes off to war, making Ambrose proud of his son, but when Ambrose learns that his daughter has been arrested for theft, he disowns her. Melia does not reveal the reason for taking the money and is sent to prison. Meanwhile, Henry fights bravely in France and returns home minus an arm but wearing the Victoria Cross. He finds his sister, weak and worn from overwork, in the prison hospital. Seeing her brother with his medals, Melia realizes that her sacrifices for him and her country have not been in vain, and that in her own way, she has served her country.
Frivolous Jasmine Grenfel is torn between the bold Rudyard Byng and the reserved Ian Stafford. Impulsively she marries Byng with the rejected Stafford leaving for South Africa. He proves to be a poor husband, and much heartache follows but when war breaks out Rudyard distinguishes himself in the field, recovering from his former dissipation and the couple are reunited.
A woman detained in Germany attempts to escape so she can reunite with her American lover.
A girl from Paris' underworld fights for love and survival during a time of international turmoil.
Montgomery Jackson is initially afraid of conflict, refusing to enlist despite pressure from friends and his fiancée Bettie, but later joins the American Expeditionary Force after Bettie volunteers as a Red Cross nurse.