A proposed $70 million deal sending four MK-41 Baseline VII Strike-Length Vertical Launch Systems to Finland received U.S. Department of State approval, marking a key step for the Nordic nation in its ongoing naval upgrade.

Finland intends to use the vertical launching systems on four new construction corvettes that will make up the Finnish Navy’s Squadron 2020, according to a Tuesday release from the Defense Security Cooperation Agency (DSCA).

The vertical launching systems will enable Finland to acquire missiles that will enhance the Finnish Navy’s area defense capabilities over air-and-sea lines of trade and communication, the DSCA release said. Lockheed Martin Corp. is the principal contractor.

Earlier this month, Finland also received Department of State for a proposed $622 million purchase of 132 RGM-84Q-4 Harpoon Block II+ ER Grade B Surface-Launched Missiles and RGM-84L-4 Harpoon Block II Grade B Surface-Launched Missiles, according to DSCA. The Boeing Co. is the principal contractor for this deal, which also sending up to 21 U.S. government personnel to Finland to provide support during the next decade. The missiles included in the proposed sale are:

100 RGM-84Q-4 Harpoon Block II Plus (+) Extended Range (ER) Grade B Surface-Launched Missiles

12 RGM-84L-4 Harpoon Block II Grade B Surface-Launched Missiles

12 RGM-84Q-4 Harpoon Block II+ ER Grade B Surface-Launched Upgrade Kits

4 RTM-84L-4 Harpoon Block II Grade B Exercise Surface-Launched Missiles

4 RTM-84Q-4 Harpoon Block II+ ER Grade B Exercise Surface-Launched Missiles

Neither sale is final until it receives Congressional approval.