Before it was a museum, before it was a revolutionary training ground, before the Japanese confiscated it, Gedung Joang '45 was a place where Dutch guests slept on clean sheets and ordered room service. Hotel Schomper opened on Jalan Menteng Raya 31 in the fashionable Menteng district of Batavia -- the name the Dutch gave Jakarta -- and catered to the colonial elite. Its owners eventually moved to Bandung to open a second location, and the Jakarta hotel passed to new management. None of this would matter to history except for what happened next: in 1942, the Japanese military seized the building and installed a propaganda office called the Ganseikanbu Sendenbu. The hotel became Gedung Menteng 31, and its rooms began filling with a different kind of guest -- young Indonesian nationalists who would, within three years, help force the birth of a nation.
The young men who gathered at Gedung Menteng 31 during the Japanese occupation were not soldiers. They were students, activists, and organizers who received their political education inside the building's walls. Sukarni, Chairul Saleh, A.M. Hanafi, and Adam Malik -- names that would later appear in Indonesian government rosters and history textbooks -- trained here in the rhetoric and logistics of resistance. They called themselves the Pemuda Menteng 31, the youth of Menteng 31. The Japanese had intended the propaganda office to channel Indonesian energy toward Japan's war aims, but the young nationalists absorbed the organizational techniques and turned them toward their own purposes. These were not passive students. When independence seemed tantalizingly close in August 1945, the Pemuda Menteng 31 took matters into their own hands with an act of dramatic impatience that nearly derailed the proclamation itself.
On the night of August 15-16, 1945, Japan had surrendered but Indonesia had not yet declared independence. The Pemuda Menteng 31 -- Sukarni, Chairul Saleh, and their associates -- feared that Sukarno and Mohammad Hatta were moving too cautiously, waiting for Japanese permission to proclaim sovereignty. So they kidnapped them. The young revolutionaries took Sukarno, his wife Fatmawati, and Hatta from their homes and brought them to Rengasdengklok, a small town east of Jakarta, demanding an immediate declaration. The gamble worked, though not in the way the youth had planned. After tense negotiations, Sukarno and Hatta were returned to Jakarta, where the proclamation text was drafted that same night at Rear Admiral Maeda's residence and read aloud the following morning, August 17, 1945. The Rengasdengklok Incident, as it is now known, revealed the fierce urgency of the younger generation -- a generation that had been forged, in part, within the walls of the former Hotel Schomper.
President Suharto inaugurated the renovated museum in 1974, and it was designated a national monument. Today, guided tours are still sometimes given by former combatants from the independence struggle -- men and women who lived the history the museum describes. The collection relies heavily on scale models and dioramas to reconstruct scenes from the revolution, supplemented by period paintings and photographs that form one of Jakarta's richest documentary archives of the independence era. But the museum's most arresting feature is auditory, not visual. Visitors can hear a recording of Sukarno's original proclamation of Indonesian independence, delivered on August 17, 1945. They can also listen to his fiery speech at the massive anti-colonialist rally on Ikada Square -- now Merdeka Square -- on September 19, 1945, when tens of thousands gathered to hear the new president defy the returning colonial powers.
The building's history reads like a compressed version of Indonesia's twentieth century. Dutch luxury hotel. Japanese propaganda office. Revolutionary youth training ground. Briefly, during the war against the returning Dutch, even the Royal Netherlands Navy occupied it. Each tenant left marks on the structure and its meaning. A library of historical reference works now fills rooms where colonial guests once lingered over drinks, and where young nationalists once debated how to seize the future. School classes arrive by the busload -- Indonesian students learning about the Pemuda who, at roughly their own age, kidnapped the founder of their nation because they thought he was not moving fast enough. The museum attracts visitors precisely because its story is not tidy. Independence was not proclaimed in a parliament or negotiated at a conference table. It was argued over in hotel rooms, driven forward by impatient youth, and declared from a front yard.
Located at 6.19S, 106.84E on Jalan Menteng Raya 31 in the Menteng district of Central Jakarta, approximately 1.5 km east of Merdeka Square and the National Monument (Monas). The building is a colonial-era structure, modest in profile and not easily identifiable from altitude amid dense urban fabric. Nearest major airport is Soekarno-Hatta International (WIII), about 25 km northwest. Halim Perdanakusuma Airport (WIHH) lies roughly 12 km southeast. The expansive Merdeka Square and its central obelisk serve as the primary orientation landmark. Best viewed at low altitude alongside other Central Jakarta independence-era sites.