Where To Find Strength On Pokemon Platinum?

you can get the HMs at:

-rock smash: You can get that in the cave, the traveler will give you when you step in the cave.
-cut: You can get that from the wind mill event.
-surf: You can get that from the elder in the ruin after you defeat the team galactic boss.
-fly: You can get that inside the galactic hideout
-strength: You can get that from riley on iron island.
-defog: You can get that in the ruin in Solaceon Town
-rock climb: You can get that in the snow behind the house.
-waterfall: You can get that from jasmine.

you can get HMs from the followings:

-rock smash: You can get that in the cave, the traveler will give you when you step in the cave.
-cut: You can get that from the wind mill event.
-surf: You can get that from the elder in the ruin after you defeat the team galactic boss.
-fly: You can get that inside the galactic hideout
-strength: You can get that from riley on iron island.
-defog: You can get that in the ruin in Solaceon Town
-rock climb: You can get that in the snow behind the house.
-waterfall: You can get that from jasmine.

You find strength at iron island and Riley will give it to you.To get to iron island you take a boat at canalave city.

You go up the stairs and talk to riley.he will give you strength and goes into the cave.he also gives you riolu if you find him in the cave and fight with him

You go to Iron island follow the stairs then talk to the blue hat guy and he will give you it

Go to iron island then go to riley the blue guy then he will give you it.

You get it from Riley on iron island

In lost tower on the top floor

Iron island

Lost tower 4th floor. .

You can get a cheat on ar for it on guru cheats