Vladimir Putin hasinvadedUkraine. The underline word is a/an -

Verb এর object থাকলে সেটিকে Transitive verb এবং Object না থাকলে সেটিকে Intransitive verb বলে।
যেহেতু invaded- verb এর object হিসেবে ‘Ukraine’ রয়েছে সুতরাং এটি Transitive verb.

পাশাপাশি invade এখানে Finite verb.
From Cambridge Dictionary,
- Finite verb forms show tense, person and number (I go, she goes, we went, etc.)
অন্যদিকে,
Non-finite verb forms do not show tense, person or number.
Typically, they are infinitive forms with and without to (e.g. to go, go), -ing forms and -ed forms (e.g. going, gone).