DAMASCUS — His face is just about everywhere, in public squares, markets, and street corners in Damascus, as well as on the roads and highways leading to the Syrian capital.

Buoyed by successive military advances over the past year and having completely secured Damascus — President Bashar Assad’s seat of power — and surrounding suburbs for the first time in years, the government is boasting about its victories.

And there is no shortage of posters and billboards for the triumphant message.

‘‘Master of victories,’’ proclaims one poster of a smiling Assad in a blue suit and tie, placed on a street.

After almost seven and a half years of war and about 400,000 deaths — and with crucial military support from Russia and Iran — Assad has reasserted control over territory in the country’s north, center, and south, near the border with Jordan and the frontier with the Israeli-occupied Golan Heights.

The posters, most of them offered up by businessmen and companies loyal to Assad, begin as soon as one crosses into Syria from Lebanon: ‘‘Welcome to victorious Syria,’’ they say.