英國首相說，"瘋狂的、大男子主義的 "入侵是 "有毒的男子氣概的完美例子"，他呼籲 "有更多的女性擔任權力職務"。
約翰遜先生還說，雖然七國集團領導人 "迫切 "希望結束烏克蘭戰爭，但目前 "沒有任何協議"。
但他也將這次峰會描述為 "不可思議"，因為各國領導人 "越來越接近 "達成協議。
The UK prime minister said the "crazy, macho" invasion was a "perfect example of toxic masculinity" and he called for "more women in positions of power".
At the summit in Madrid, he is set to call on fellow members of the defensive alliance to ramp up defence spending.
The UK's defence spending is projected to reach 2.3% of GDP - a key measure of the annual income of a country - this year as a result of defence industry investment and £1.3bn in military support for Ukraine, the government said.
While speaking about gender equality and the importance of education, he said "you need more women in positions of power".
"If Putin was a woman, which he obviously isn't, but if he were, I really don't think he would've embarked on a crazy, macho war of invasion and violence in the way that he has," Mr Johnson said.
Mr Johnson also said that while G7 leaders "desperately" want an end to the war in Ukraine, there is "no deal available" currently.
But he also described the summit as "incredible" as leaders "got closer and closer" to an agreement.
Mr Johnson said the West must support Ukraine's military strategy, in order to get President Volodymr Zelensky "in the best possible position" in negotiations with Russia "when talks eventually come".
The Nato meeting in Madrid comes after news that Turkey has reached a deal with prospective members Finland and Sweden, removing a final barrier to their joining.