What is this "sudden attack" all about?
Russia’s attack on Ukraine has sparked global condemnation from NATO members for violating international law. While NATO asserts Russia’s actions breach the UN General Assembly’s definition of aggression, Australia has opted not to deploy troops but will instead assist Ukraine with cyber security support.
russia condemned
Despite Russia’s claims of self-defense Russia’s attack on Ukraine has been widely condemned by NATO as deviation from established international legal frameworks concerning aggression
Aggressive Occupation
NATO maintains that Russia’s invasion constitutes an act of aggression by military occupation and annexation.
No Aussie troops
Australia, under Scott Morrison, will assist Ukraine primarily through cyber security support but will not deploy troops
Russia’s “sudden attack” to Ukraine shocked the whole world, prompting NATO members to call attention on how the country violated international law. However, Vladimir Putin weaponized the same against the critics, reiterating that the attack was a self defence against threats – following the interest of Ukraine to become a part of NATO.
As what Russia appears to claim as defence mechanism in pursuant with Article 51 of the Charter, putting sudden force into operation was to protect itself from threats escalating from Ukraine. Based on current news however, law experts argue that the international legal frameworks defining violation and aggression was averted, nonetheless.
Members of NATO reiterated that Russia’s move against Ukraine violated Article 3 – Resolution 3314 of United Nations General assembly, whereby it defines the meaning of aggression, being” “[t]he invasion or attack by the armed forces of a State of the territory of another State, or any military occupation, however temporary, resulting from such invasion or attack, or any annexation by the use of force of the territory of another State or part thereof”.

Russia’s claim of self-defense under Article 51 is challenged by international experts, who argue it violates the established frameworks on aggression and military occupation.

Australia’s support for Ukraine focuses on cyber security rather than direct military involvement, reflecting a strategic approach to assisting Ukraine amid the conflict.
Participation of Australia
Scott Morrison has made clear that Australia will not be sending troops in Ukraine and will help the country in other ways without specifying, other than helping Ukraine with its cyber security.