The prohibited month for the prohibited month, and equal retaliation for all prohibited things; then anyone aggresses upon you, then you also aggress against him in a manner he aggressed upon you, and you heed Lord Allah, and you know indeed Allah is with the heedful.
Fighting is prohibited in four months as per the Hijra calendar. They are: Dulka’d (11th), Dulhajj (12th), Muharam (1st) and Rajab (7th). But if the enemies are aggressing the believers in those months, verse permits the believers to retaliate in the same manner as they do. As there is no group of believers anywhere in the world today, there is no Jihad with weapons. But the Arabic Quran reading Fujjar by hiding and rejecting Adhikr are in the forefront of every mischievous activity all around the world. See explanation 2: 3; 5: 2, 97 and 9: 36-37.