Meaning of 破綻 in Japanese

From what I've heard, their marriage is on the rocks.

His professional career was bankrupt.

Because he was unemployed, their wedlock failed.

Especially over the last 20 years, the purported link between progressive welfare policies and economic failure in the Northern European countries seems to point to the difficulty of sustaining both full social welfare and international competitivity.

The nation's finances are bankrupt because of the war.

Communications broke down.