WASHINGTON (AP) — The nation’s top military and diplomatic leaders urged an increasingly divided Congress on Tuesday to send immediate aid to Israel and Ukraine, arguing at a Senate hearing that broad support for the assistance would signal U.S. strength to adversaries worldwide.

The testimony from Defense Secretary Lloyd Austin and Secretary of State Antony Blinken to the Senate Appropriations Committee came as the administration’s massive $105 billion emergency aid request for conflicts in the two countries encountered roadblocks.

While there is bipartisan support in the Democratic-led Senate for aid to both Ukraine and Israel, the request faces deep problems in the Republican-led House. New Speaker Mike Johnson has proposed focusing on Israel alone, and slashing money for the Internal Revenue Service to pay for it.

As the congressional divisions deepen, Blinken and Austin warned that the consequences of failing to help Ukraine in its war with Russia and Israel as it strikes back against Hamas would be dire. Inaction, they said, would threaten the security of the U.S. and the rest of the world.

“We now stand at a moment where many are again making the bet that the United States is too divided or distracted at home to stay the course,” Blinken said. “That is what is at stake.”

Austin said that if the United States fails to lead, “the cost and the threats to the United States will only grow. We must not give our friends, our rivals, or our foes any reason to doubt America’s resolve.”

President Joe Biden has requested $14.3 billion for Israel, $61.4 billion to support Ukraine, $9.1 billion for humanitarian efforts in Gaza and elsewhere and $7.4 billion for the Indo-Pacific, where the U.S. is focused on countering China’s influence. Some of the Ukraine funding would go toward replenishing domestic stockpiles of weapons that have already been provided.

The White House has also requested around $14 billion to protect the U.S. border. That money would be used to boost the number of border agents, install new inspection machines to detect fentanyl and to increase staffing for processing asylum cases.

But the House is trying to set aside much of Biden’s request for now to focus on a roughly $14.5 billion package for Israel. That plan faced immediate resistance among Senate Democrats — and put pressure on the Senate Republicans who support the Ukraine aid but are conscious of growing concerns about it within their party.

Speaking on the Senate floor, Senate Majority Leader Chuck Schumer said the House proposal “is clearly designed to divide Congress on a partisan basis, not unite us.” He said he hopes Johnson realizes he made a “grave mistake” and reverses course.

The two Cabinet secretaries argued that the aid should be tied together because the conflicts are interconnected. Blinken said that assisting Ukraine and Israel will strengthen the U.S. position against Iran, which is the biggest financial backer of Hamas.

“Since we cut off Russia’s traditional means of supplying its military, it has turned more and more to Iran for assistance,” Blinken said. “In return, Moscow has supplied Iran with increasingly advanced military technology, which poses a threat to Israel’s security. Allowing Russia to prevail with Iran’s support will embolden both Moscow and Tehran.”

Austin said the money would help Israel and Ukraine defend themselves against aggression — and also replenish U.S. stockpiles.

“In both Israel and Ukraine, democracies are fighting ruthless foes bent on their annihilation,” Austin said. “We will not let Hamas or Putin win. Today’s battles against aggression and terrorism will define global security for years to come.”

Senate Appropriations Chairwoman Patty Murray, D-Wash., said at the start of the hearing that she and the panel’s top Republican, Maine Sen. Susan Collins, were drafting “strong bipartisan legislation” that would include aid for both countries.

“Make no mistake, we need to address all of these priorities as part of one package — because the reality is these issues are all connected, and they are all urgent,” Murray said.