Subject: Re: war with Denmark or Panama??
Probably adequate to manage a shift to a wartime footing.

Uh, huh.

Their subs could harry those supply lines, but those supply lines would also be protected by escorting navy vessels

Sure. Who replenishes them at sea?

Could France alone fight off Russia? Of course not.

France's military is currently built to handle colonial action in Africa. They're not strong enough to beat even a peer country:

https://lavoiedelepee.blogspot...

After twenty-five years of crisis and despite the hiatus of 2017-2018, the French armed forces have regained their colours after having been on the verge of collapse. It should be remembered that our leaders had seriously considered in 2013 reducing the annual defence budget to around 31 billion euros until 2019 and even less if affinities with Bercy. The terrorist attacks of 2015 finally reversed the trend and in 2019 the budget was actually 35.9 billion, to reach 44 billion in 2023.

...which takes care of your point about "always been massive".

The French Air and Space Force has lost half of its personnel and half of its combat aircraft. The excellence and versatility of the Rafale aircraft has largely compensated for this loss of volume, but while the Rafale can do many things, even at long distances, they cannot be everywhere. The air intelligence capacity has increased. The transport and air-to-air refuelling capacity has diminished to the point of becoming critical (read: we are obliged to call on the Americans when it exceeds a certain threshold). Things are improving but remain insufficient.

Read that last sentence.

Be credible means being strong, and we are neither one nor the other, if we cannot do anything important without the Americans and if we do not have divisions to throw at the enemy on very short notice and without faltering. Operation Serval in Mali was remarkable in every way, from the political will to the tactical implementation of the air-land forces. The problem is, whether we like it or not, we will not have to face only small armed organizations with a total of 3,000 light combatants. We must therefore at least first of all completely reconstitute our existing brigades with all their equipment, re-form command and support regiments, put support back into the regiments, create mountains of iron ammunition and all the things necessary to fight on a large scale. We must reform reserve corps as quickly as possible, which can eventually be engaged in Operations. To do things quickly, loudly and far, we also need to rethink our transport equipment, from heavy helicopters to strategic transport aircraft, a huge neglected project.

So no. Not massive.
Having a military is so much more than fighter planes (which the Euros don't have that many they can deploy) or dudes with rifles.