Louis XIV founded the Hôtel des Invalides in 1670 to shelter soldiers disabled or impoverished by royal service. Liberal Bruant designed an immense, disciplined complex around courtyards, with dormitories, refectories, workshops, an infirmary, and administrative rooms. The first residents arrived in 1674. Their lives combined military organization, religious observance, medical care, and productive labor under rules intended to prevent begging by veterans. The long northern façade and axial entrance made royal provision visible in Paris while the institution continued to serve practical welfare and disciplinary functions.

The soldiers' church, now Saint-Louis-des-Invalides, opened for worship in the late seventeenth century. Jules Hardouin-Mansart designed an adjoining royal church crowned by a gilded dome, completed around 1706. Although connected, the two sacred spaces expressed social hierarchy: veterans worshiped in the nave while the domed church supplied a monumental setting for monarchy. Beneath its classical exterior, painted vault, chapels, and altar, the Dôme was conceived for royal religion and ceremonial splendor. It did not originally contain Napoleon's remains or function primarily as a national mausoleum.

Revolutionaries seized arms from the Invalides on 14 July 1789 before attacking the Bastille. The complex survived the fall of the monarchy and developed new commemorative roles. Napoleon cultivated the loyalty of soldiers through ceremonies there, but after defeat in 1815 he died in exile on Saint Helena in 1821. In 1840 the French government returned his remains to Paris in a carefully staged national procession. Architect Louis Visconti redesigned the crypt beneath the Dôme, where Napoleon's monumental sarcophagus was installed and formally completed in 1861.

Other military figures were buried nearby, while collections of arms, armor, artillery, uniforms, models, and documents accumulated in parts of the former veterans' home. The Musée de l'Armée was created in 1905 by combining earlier military museums. Wars and changing institutions altered occupancy, but the Invalides maintained connections to veterans and the armed forces. Conservation has repeatedly repaired stone, roofs, paintings, gilding, and interiors. Napoleon's tomb and crypt are authentic nineteenth-century commemorative constructions inserted into the seventeenth-century church, not an original feature of Louis XIV's foundation.

The French defense establishment administers the Hôtel National des Invalides, while the Army Museum manages major public collections and the Dôme visitor route. A military hospital, veterans' institutions, offices, worship, ceremonies, and museums share the site, so not every wing is publicly accessible. Standard admission is ticketed, with services and state occasions affecting circulation. Much of Bruant and Hardouin-Mansart's masonry and spatial order survives, alongside later museum installations and memorials. The ensemble's significance comes from the continuing relationship between royal welfare, military identity, national memory, burial, and active service.