Why did France take until 1949 to finish Jean Bart?
Short answerThe Second World War, German occupation, and lack of money repeatedly interrupted completion.
NotesWar, occupation, and money explain Jean Bart's delay. The Second World War disrupted the original construction programme, German occupation then constrained French control and industrial work, and funds remained scarce after liberation. The 1949 completion date reflects successive strategic and economic interruptions rather than an unusually slow peacetime build.