First, Ukraine's air supremacy is controlled by Russia, whether it is by transport planes or trains, it will be destroyed by Russia;
Second, Canada's posture should be to ease the situation, at least to make most countries feel that this is the case, and they should not send heavy weapons. If you send heavy weapons, European countries do not hate you;
Third, Ukraine is now likely to become a weapons transfer venue and a money laundering venue for international brokers. When sending heavy weapons there, is it to send money to the driver, or to a few politicians in Canada?