The weapons of trade union are:
I. Collective bargaining involving negotiations between the trade union and management
II. Threats of strike notifying management of an impending strike action
III. Actual strike: this implies total withdrawal of labour services by workers.
IV. Work to rule: the workers report for duty but refuse to work or carry out only skeletal services.
V. Picketing: A situation where workers that are willing to work are disallowed.