The flag

Picture a vast square at dawn, the lake still asleep, and suddenly, hoisted slowly up a pole, a great red rectangle across which opens a golden-yellow five-pointed star. The red snaps in the wind, the star seems to catch the light of the rising sun. Vietnamese people call this flag cờ đỏ sao vàng (roughly "co dó sao vàng"), literally "the red flag with the yellow star." It is one of the country's most recognizable symbols: draped across house fronts during national holidays, waved in stadiums when the football team sends an entire people into ecstasy, stitched onto children's schoolbags. Behind these two colors lies a whole story of revolution, of spilled blood, and of a dreamed-of unity.

Two colors, one people

The Vietnamese flag is strikingly plain: an entirely red background (đỏ, "do"), and at its center a golden-yellow five-pointed star (sao). Nothing else. That simplicity is no accident — it is meant to be legible, memorable, carried by everyone.

Red is the color of the revolution and of the blood of the martyrs, the men and women who fell for the country's independence. In a region where red also evokes luck and joy, the color carries a double charge: sacrifice and hope. The yellow star symbolizes the unity of the Vietnamese people. Its five points are traditionally associated with the five great components of society mobilized in the struggle and in nation-building: the workers (công nhân), the peasants (nông dân), the soldiers (bộ đội), the intellectuals (trí thức), and the youth (thanh niên). One star, five points, a single people marching together: the message is crystal clear.

Yellow, moreover, has for centuries been an imperial and solar color across East Asia. Placing a golden star on red makes the people's unity shine like a sun at the heart of the nation.

The birth of an emblem

The red flag with the gold star emerged in the late 1930s and early 1940s, in the ferment of the independence movements against French colonial rule. It is associated with the revolutionary uprisings of the period, notably in the south of the country. It quickly became the banner of the Việt Minh, the front that gathered the forces fighting for national liberation.

The founding moment came in August 1945. After the Japanese surrender ended the occupation, the Việt Minh seized power in what is known as the August Revolution (Cách mạng Tháng Tám). On September 2, 1945, in Ba Đình Square in Hà Nội, Hồ Chí Minh proclaimed independence and the birth of the Democratic Republic of Vietnam. The red flag with the gold star became the national flag.

Remember that the country then endured decades of war and division. During the years when Vietnam was split in two, this flag was the flag of the North. The South flew a yellow flag with three red stripes. After the country's reunification in the mid-1970s, the red flag with the yellow star became the emblem of the whole reunified Vietnam, under the name Socialist Republic of Vietnam (Cộng hòa Xã hội Chủ nghĩa Việt Nam). The star, whose points at first had slightly more rounded outlines, was redrawn with sharper, straighter points, as we know it today.

The flag in everyday life

A flag truly exists only in the gestures of those who live it. In Vietnam, the cờ đỏ sao vàng is everywhere, but it blazes especially on certain dates. On National Day (Quốc Khánh), September 2, the streets fill with red: every house, every shop, every official building hangs its flag. During Tết (Tết Nguyên Đán), the Lunar New Year, it appears among the decorations too, since its red already belongs to the language of happiness.

There is one moment no traveler in Vietnam forgets: match nights. When the national football team wins, tens of thousands of scooters pour into the avenues, flags in fists, horns blaring, young people standing on their seats, faces painted red and yellow. This is called "đi bão" ("going into the storm"), and it may be where the flag lives most intensely — not as a frozen official symbol, but as the raw joy of a people recognizing itself in two colors.

On Ba Đình Square, in front of Hồ Chí Minh's Mausoleum, the daily ceremony of raising and lowering the flag draws onlookers: the guard in white uniform, the slow and solemn step, the silence. It is a ritual that recalls the historical weight of this square of cloth.

Tiến Quân Ca, the anthem that rises with the star

You cannot speak of the flag without speaking of the anthem that rises as it climbs. The Vietnamese national anthem is called Tiến Quân Ca, which can be translated as "the song of the advancing army" or "the march to the front." It was composed by the musician Văn Cao in the 1940s, amid the struggle for independence.

It is a vibrant, martial march that calls the people to rise and advance as one. Its opening words, "Đoàn quân Việt Nam đi…" ("The army of Vietnam advances…"), are known to every schoolchild in the country. Every Monday morning, in schoolyards, the children line up, sing the anthem, and watch the flag rise: this is the chào cờ ("the salute to the flag"), a weekly ritual that etches, from childhood, the bond between the colors, the music, and the idea of nation.

Note one delightful nuance of vocabulary: in Vietnamese the word cờ means both "flag" and the game of "chess" or draughts — two worlds in which you advance your pieces toward victory. The language loves such slippages of meaning.

A protocol and its gestures

Like any national emblem, the Vietnamese flag follows precise rules and a silent etiquette. On official buildings it flies from sunrise to sunset; during national mourning it is flown at half-mast, sometimes trimmed with a black ribbon. The proportions of the rectangle and the star are standardized, so that the same design appears identically on a tiny stamp and on the vast banners hung across the fronts of ministries.

There is also a geography of the flag that strikes travelers. At the Lũng Cú border post, at the far north of the country, a gigantic flag snaps atop a stone tower: it is the northernmost point of Vietnam, and the star flying there symbolically marks the "roof" of the nation. At the other end, in the provinces of the Mekong Delta or on the islands, the same red and the same star recall the unity of a territory drawn out lengthwise, stretched over more than fifteen hundred kilometers.

Finally, the flag travels. Everywhere in the world where the Vietnamese diaspora lives — and it is large — the red with the yellow star, but also other flags tied to the country's complex history, resurface at festivals, cultural events, and matches. A simple square of cloth thus crystallizes memories, attachments, and sometimes debates, proof that a flag is never merely an object: it is a distillation of living history that each person carries within.

A square of cloth, an entire imagination

What is striking about the Vietnamese flag is its ability to condense an entire history into two colors and five points. It does not seek the heraldic complexity of European coats of arms. It goes straight to the essential: the red of courage and sacrifice, the gold of radiant unity. A child can draw it. A whole stadium can wave it. A nation can recognize itself in it. That is surely why it endures: because it speaks to everyone, from the old farmer to the young supporter, without needing a manual. It is understood at a glance, carried with a gesture, passed on without a word.

When you see, in an alley of Hà Nội or on a balcony in Sài Gòn, that great red rectangle stamped with its golden star snapping in the wind, you will now know how to read what it tells: a people who, through decades of hardship, chose to hold together under a single star. Cờ đỏ sao vàng. The red flag with the yellow star.

Vietnamese to remember

• cờ (co) — flag (also: the game of chess)
• cờ đỏ sao vàng (co dó sao vàng) — "the red flag with the yellow star," the national flag
• đỏ (do) — red
• vàng (vang) — yellow, golden; also "gold"
• sao (sao) — star
• ngôi sao năm cánh (ngoy sao nam cang) — the five-pointed star
• Việt Minh (viet minh) — the national liberation front of the 1940s
• Quốc Khánh (kwok kang) — National Day
• Tiến Quân Ca (tien kwan ca) — "the song of the advancing army," the national anthem
• chào cờ (chow co) — the salute to the flag (school ritual)
• độc lập (dohp lap) — independence
• thống nhất (thong nyat) — unity, reunification