Talks on a peace deal between Ukraine, the US and European leaders focused on territorial issues and security guarantees.
Russia currently controls about a fifth of Ukraine's territory, and US President Donald Trump has stated that territorial changes are essential to reaching an agreement between the two countries.
"Strategically, it is important for Russia because, by taking Donbass, Kherson, Mykolaiv and Zaporizhzhia, it gains wider access to the Black Sea. If it also reaches Odessa, then Ukraine remains landlocked," said Marnie Howlett.
But, according to the expert, the Kremlin's objective goes beyond Donbass.
"In fact, Russia aims to take all of Ukraine, not just Donetsk and Luhansk. Moscow has shown that it has no intention of stopping once it secures these territories ," said Marnie Howlett.
Although Russia claims territories, the reality is that many of them are ravaged by war.
"A soldier told me today that in cities like Soledar, Mariupol and Bakhmut there is nothing left, just stones and rubble," said Marnie Howlett.

Howlett warns that legitimizing such invasions would pave the way for further Russian aggression.
"If changing borders by force is accepted, then the door opens for other borders in the world to be changed by force as well. This is a dangerous precedent," said Marnie Howlett.
President Volodymyr Zelenskiy has said he will not give up territory and that no part of Ukraine is private land to be exchanged. But the polls are divided into two categories.
The Kiev International Institute of Sociology says that an opinion poll in June showed that 68% of respondents oppose the idea of officially recognizing the occupied land as Russian, while 24% are open to it.
"If Zelensky were to accept the surrender of territories, there would be a huge upheaval. Volunteers and civilian battalions would continue the fight even without government orders. The Ukrainians will not stop without serious security guarantees from NATO," said Marnie Howlett.
A key topic of the meetings were the security guarantees that would be offered to Kiev as part of an agreement to end the fighting.
Trump said during the meeting with Zelensky that European countries would provide the "first line of defense," and the United States would "get involved."