What will happen if the western armies attack?

The Russian military operation in Ukraine ended on March 13, the 16th day. Alarm bells have been rung in several Ukrainian cities. Fighting is raging between the two sides on the outskirts of the capital, Kiev. An all-out Russian attack is feared in Kiev.
Ukrainian President Volodymyr Zelensky has claimed that 1,300 Ukrainian soldiers have been killed so far in the conflict.
French President Emmanuel Makhon and German Chancellor Olaf Schultz have called on Russian President Vladimir Putin to agree to a ceasefire.
Russia’s Deputy Foreign Minister Sergei Ryabkov has warned that a fleet of Western-backed weapons aided by Ukrainian forces could be a “legitimate target” for the Moscow attack.
The ongoing conflict could take a new turn if a fleet of Western-sent weapons to Ukraine is attacked by Moscow. In that case, there is a risk of a direct confrontation between NATO and Russia.
Readers have many questions about the ongoing Ukraine crisis. The report tries to find answers to those questions with the help of BBC.