Ukraine's extensive use of asymmetrical tactics, and innovative equipment such as sea drones, gives the country an effective edge against its foe.

Russia's drone attacks on Ukraine's infrastructure have begun to target military recruitment centers, according to a data analyst group. Armed Conflict Location and Event Data (ACLED) said Russia began to hit enlistment centers in recent weeks in a concerted effort to disrupt Ukraine's mobilization.

Russia launched four missiles and 136 drones into Ukraine overnight into Monday morning, according to Ukraine's air force.

Ukraine says it will give defense firms a detailed report of how their weapons tech fares in combat against Russia's troops.

President Donald Trump, who has recently sharpened his tone against Russia, threatened harsher sanctions earlier this month if a peace deal was not reached within 50 days.