Start with one country. After a major attack on home soil, incite fear in everyone and claim that country X supported the attackers. Attack country X. Then clai

Start with one country. After a major attack on home soil, incite fear in everyone and claim that country X supported the attackers. Attack country X. Then claim that country Y also helped the attackers. Attack country Y. Continue convincing the population that they should be afraid of more attacks from unknown attackers that are all around us. Repeat for more countries.