The changes are required because it turns out that the structure and way of war of most developed armies in the world no longer fit the way of war and the technology of the 21st century.

In simpler terms, the advanced armies (the US army is the only army that is better built and it also needs significant improvement) are ineffective.

Note: The changes as will be detailed have been known to professionals for a decade or more, but as is the way of nature, the security systems usually tend to be in a state of stagnation, to continue as usual.

The changes when they are made are carried out only as a result of learning lessons from major wars in which the shortcomings, weaknesses and strengths of the fighting force are revealed.

Below is a breakdown:

1. The size of the fighting force

It became clear that the size of the fighting ground force must be significantly larger, in fact double and multiple of the current one.
This is after the size of the armies has been significantly reduced, actually minimized in the last decades.

It is now evident to most countries that their armies have no ability to defend the country against an invasion by a hostile army.

That is why most of the armies in the Western countries except the US Army which has maintained most of its strength over the years are now in the phase of doubling the fighting force, a move that will be carried out until the end of this decade.

That is also why the budgets for the strengthening of the security systems have been doubled and more, hundreds of billions of dollars or euros are being invested now and will be invested in the coming years in the procurement of modern weapons and ammunition.

2. Changing the quantitative relationships between the components of the armored force.

The accepted historical ratio was 3 to 1, this is the accepted ratio between the number of tanks which are the main means of assault and the number of cannons and missile launchers which are the main means of assistance of the fighting division.

This ratio now changes to 1:1, meaning not less tanks but much more artillery.

As stated, most of the investment of the budgets for the strengthening will be in the direction of establishing a "missile force" and long-range cannons that launch also or only precision weapons.

It turns out, as expected, that the ground arms of the army is not able to advance significantly in enemy territory without massive and effective artillery and engineering assistance.

The manned fighter jets as expected again proved unable to provide close assistance to the forces on the ground.

In the Ukraine-Russia war, it was proven that manned planes that approach the battlefield will be shot down by the modern anti-aircraft systems.

3. APCs (armored personal carriers)

A large investment is currently being made in purchasing modern APCs.

In fact, the light and vulnerable APCs are being replaced by protected, heavy and expensive APCs.

The modern APCs are actively protected and equipped with a turret, a fast-firing automatic cannon with a diameter of 30-50 mm and also the ability to launch anti-tank missiles.

In a war, it turns out that every anti-tank missile system and also an administrative vehicle that is not actively protected will not survive, since in a war the enemy will use thousands of anti-tank missiles, most of them of the fire-and-forget type, as well as thousands of suicide drones.

4. A large investment is being made in the field of long-range precision ground weaponry.

Armies are now augmented with many precision missiles and shells and innovation are now augmented with many suicide drones as well.

It turns out that the ground forces are now, instead of the air forces, taking responsibility for most of the attacks, some of which are also carried out at a distance of hundreds of kilometers deep in the enemy's territory.

The current Air Force is more responsible for intelligence and less for carrying out the attacks.

5. Logistics

The wars are long and exhausting and require large, double and multiple stocks of ammunition and ammunition.

6. Relatively effective mobile defense against suicide drones and cruise missiles

It turns out that the armies (including the civilian home front) must have such an active defense, especially against suicide drones that have become the most effective means of attack, and therefore the anti-aircraft guns that were retired are now being returned to the forces.

In the US army, which is the most advanced and richest army in the world, this year they also began to arm themselves with light laser cannons that are mounted on APCs and this is just the introduction to equipping themselves with powerful laser cannons.