21.   The strikes have already crippled key export industries including shipyards and car making forms.

22.   The strike ultimately crippled the movement, which was further weakened by defections and the privatisation of the coal industry.

23.   The strikes have crippled key export industries including shipyards and car making firms.

24.   London commuters endured a third day of rail chaos on Monday as a strike crippled many busy routes into the capital and threatened to drag on until Tuesday.

25.   Nigeria has been crippled by strikes in recent months.

26.   On top of street clashes, industry has been crippled by strikes.

27.   Russia is regularly crippled by strikes.