Should countries pursue policies of imperialism, or empire expansion?

I believe countries today countries should pursue policies of empire expansion. If we expanded our empires we would have more supplies, products and freedom. Empire expansion would also bring peace among the countires. Empire expansion would do nothing but good for all countries. Imperalism is taking over smaller, weaker countries and overthrowing them. This wouldn't bring peace among the countries but only bring more problems. It causes war and hatred. If a countries needs goods or military weapons they can just expand their country with another country instead of attempting to overthrow the country. Instead of impearlism, empire expansion would be simpler and peaceful.  If more countries pursued empire expansion i believe there would be less poverty in the world and more wealth. Countries could lean on eachother for help, they could share products and there would be less war. Empire expansion would be a better choice no matter what.