The term paper on the topic of Preparation and making of operational order (OPZAP/OPORD) was made with the aim of better understanding the key documentation related to the process of unit management. The term paper contains the basic tools for leading process, the task of key personnel in the process of leading and important commands concering the process of leading and decision-making. The deciosion-making process is closely related to the management process, and it unites the unit managment process. Knowladge of orders by commanders is a key factor in military decision-making process. The paper brings together answers to the topics such as leadership process, all the way to the very end of the decision-making process, types of orders and ways of creating them, and finally an example of one of the company commander operational order. The example brings together the entire operational order of the comapany commander together with appendix C which is representing a graphical representation of the operation area with all the elements and tacitical tasks listed in the operational order.