What is their tonnage and other specs?
You had the second most powerful navy, after commissioning of Damavand frigate Iran will have the second most powerful navy, Iran plans to build two or three more Moudge frigate and several Sina class missile boats
Iranian fleet
1 Damavand Frigate - 1500 tons- 76mm gun, 4 noor missiles, standard missiles, 40mm gun, 2x3tube 324mm torpedos, 2x20mm gun(launched several mouths ago and will be commissioned in a few mouths) - more planned
1 Hamzeh corvette - 580 tons - 20mm gun, 4 noor missiles
3 Sina class(copy of la combattante 2) - 265 tons - 76mm gun, 4 noor missiles, 40mm gun(more under construction)
6 50ft Patrol boats and several lightly armed patrol boats, minesweeper and several logistic ships
Azerbaijan navy
1 Petya class frigate - 1150 tons - 2x2 76mm gun,2 RBU6000 anti submarine rocket launchers,5 anti sub torpedo tube.
1 Osa 2 class missile boat - 235 tons - 2x ak230 ciws, 4 p15 termit missile
3 Stenka-class patrol boat - 245 tons - ak230 30mm ciws, 4x 400mm anti sub torpedo
2 AB-25 PB boats - 170 tons -1 or 2x40mm guns, 20mm gun
and several more Patrol boats, minesweepers and logistic ships
And Iran consider the picture below as her boundaries in Caspian sea so some of the oil fields that Azeri gov consider as her own is in our view belongs to Iran.