Tehran - IRNA - The former spokesman of the Ministry of Foreign Affairs pointed out that the national unity and cohesion formed in the past hundred days was a vital and decisive factor in Iran's honorable resistance. He clarified: Criticism, non-expert and a mixture of reality, suspicion and conjecture, along with atmosphere creation, will definitely be contrary to the sacred and desirable goal, which is to protect national unity and cohesion in the most sensitive situations.