Ottawa reportedly paid for the system later in the spring, but its delivery has been delayed.Earlier in the day, Zelensky said that Ukraine has begun receiving increasingly more military assistance from partners, namely in terms of artillery. The NASAMS systems have been in service with Ukrainian forces since November 2022, when the U.S. delivered the first batteries amid the escalating Russian airstrikes.Ukraine has lobbied international partners for more air defense capabilities in the wake of intensifying Russian strikes targeting energy infrastructure.Canada has committed 4.5 billion Canadian dollars ($3.2 billion) in military aid for Kyiv since the start of Russia's all-out war. US announces new military aid package worth $425 millionThe recent military assistance is provided under the Presidential Drawdown Authority (PDA) which pulls weapons from U.S.