Walikum-us-salam. There are two types of ghazwat. Ghazwat-e-Waqiya: These include those wars which were fought during the times of Rasoolulah (SAWW). These can be further divided into "ghazwa" and "surriyya". Ghazwat-e-Mo'uudah: These include the future wars which have been predicted in the hadeeths of Rasoolulah (SAWW). Please have a look at the attached image, where I have gathered the required information.