Err.. Sort of...#

But I would recommend to use:

Traps

Since your country is on the defensive, I suggest going to a more defensive style of fighting. I don't know what do you mean by weapons made of ice. But since the magic powers are limited in your world, I don't know how ice-smithing (if such a thing exists), really works.

Therefore, Traps would be perfect in this scenario.

For instance, your people can make

• Pitfall traps that are made from thin sheet of ice that utilize Iron Spikes or
• Ice spikes in conjunction to pitfall traps
• For indoors, Stalactite style traps - your people can cast their minor levitation skill to attach them to the ceiling and put some kind of trigger to release it
• Trap doors made of ice (works like pitfall) - but manually triggered to open with help of levitation skill, or some minor fire skill, etc.
• Blizzard - if your people can cast flame spells I assume they can also cast ice spells. I assume there's always snow in your country but if you could somehow make man-made blizzard it could also work.

Edit:

• Avalanches as @Nicolai suggested, could also be taken advantage of based on the terrain.

I'll try to edit this post if I could think of more.

Err.. Sort of...

But I would recommend to use:

Traps

Since your country is on the defensive, I suggest going to a more defensive style of fighting. I don't know what do you mean by weapons made of ice. But since the magic powers are limited in your world, I don't know how ice-smithing (if such a thing exists), really works.

Therefore, Traps would be perfect in this scenario.

For instance, your people can make

• Pitfall traps that are made from thin sheet of ice that utilize Iron Spikes or
• Ice spikes in conjunction to pitfall traps
• For indoors, Stalactite style traps - your people can cast their minor levitation skill to attach them to the ceiling and put some kind of trigger to release it
• Trap doors made of ice (works like pitfall) - but manually triggered to open with help of levitation skill, or some minor fire skill, etc.
• Blizzard - if your people can cast flame spells I assume they can also cast ice spells. I assume there's always snow in your country but if you could somehow make man-made blizzard it could also work.

Edit:

• Avalanches as @Nicolai suggested, could also be taken advantage of based on the terrain.

I'll try to edit this post if I could think of more.

Err.. Sort of...#

But I would recommend to use:

Traps

Since your country is on the defensive, I suggest going to a more defensive style of fighting. I don't know what do you mean by weapons made of ice. But since the magic powers are limited in your world, I don't know how ice-smithing (if such a thing exists), really works.

Therefore, Traps would be perfect in this scenario.

For instance, your people can make

• Pitfall traps that are made from thin sheet of ice that utilize Iron Spikes or
• Ice spikes in conjunction to pitfall traps
• For indoors, Stalactite style traps - your people can cast their minor levitation skill to attach them to the ceiling and put some kind of trigger to release it
• Trap doors made of ice (works like pitfall) - but manually triggered to open with help of levitation skill, or some minor fire skill, etc.
• Blizzard - if your people can cast flame spells I assume they can also cast ice spells. I assume there's always snow in your country but if you could somehow make man-made blizzard it could also work

I'll try to edit this post if I could think of more.

Err.. Sort of...#

But I would recommend to use:

Traps

Since your country is on the defensive, I suggest going to a more defensive style of fighting. I don't know what do you mean by weapons made of ice. But since the magic powers are limited in your world, I don't know how ice-smithing (if such a thing exists), really works.

Therefore, Traps would be perfect in this scenario.

For instance, your people can make

• Pitfall traps that are made from thin sheet of ice that utilize Iron Spikes or
• Ice spikes in conjunction to pitfall traps
• For indoors, Stalactite style traps - your people can cast their minor levitation skill to attach them to the ceiling and put some kind of trigger to release it
• Trap doors made of ice (works like pitfall) - but manually triggered to open with help of levitation skill, or some minor fire skill, etc.
• Blizzard - if your people can cast flame spells I assume they can also cast ice spells. I assume there's always snow in your country but if you could somehow make man-made blizzard it could also work.

Edit:

• Avalanches as @Nicolai suggested, could also be taken advantage of based on the terrain.

I'll try to edit this post if I could think of more.